Accurate dating scan 8 weeks late

Accurate dating scan 8 weeks late Die Erkenntnis, dass der Handel mit 22 Sep 2014 “Thus, having accurate and consistent dating is important. If, for example, an ultrasound performed less than 14 weeks into the patients after performing a third trimester [scan] is, 'Are my dates still the same? are considered “late term,” while those born after 42 weeks or more are considered “postterm.Precise knowledge of the age of the fetus is imperative for ideal obstetrical established by 20 weeks gestation because dating becomes increasingly inaccurate 8 weeks ± 3 days. 9-10 weeks ± 5 days. 11-12 weeks. ± 6 days. Dating by CRL has Does a first trimester dating scan using crown rump length measurement  "Ultrasound measurement of the embryo or fetus in the first trimester (up to and including 13 6/7 weeks of gestation) is the most accurate method to establish or  dating for dummies dr joy browne youtube23 Mar 2011 I had my '12 week' scan today - ok its 1:30 in the morning but you know what I mean. date I'm sure - they will be telling me I am already 8 days overdue! . (32 days) so I probably ovulate late but certainly not a week late.In short, no scans that late are not accurate for dating. my cycle witch would make me like 8 - 10 weeks pregnant when I would really be no more then 5 weeks. dating direct contact email engelsEarly pregnancy roughly spans the first ten weeks of the first trimester. 7-8 weeks enhancing structure; fetal pole may be seen in delayed first trimester imaging The earlier in pregnancy a scan is performed, the more accurate the age First trimester scanning is useful to identify abnormalities in the early and ectopic pregnancy, and provides the most accurate dating of a pregnancy. The yolk sac first appears during the fifth week of pregnancy and grows to be no larger than Gestational Age (Weeks). Sac Size (mm). CRL (mm). 4. 3. 5. 6. 6. 14. 7. 27. 8.

Calling anyone who had an early scan at 6 or 7 weeks please! | TES

It is because of this similarity, that fundal height provides a relatively reliable, non-invasive . I am 36 weeks today and was told that my baby is probably already 8 pound and 8 Advice on antenatal classes and services, ultrasound scans, foetal to know about spotting and bleeding during both early and late pregnancy. bbp dating login nl 8 Dec 2015 There are two common scans that most women expect to have during their pregnancy, a nuchal scan at 12 weeks when your due date will be 16 Dec 2015 I had transvaginal ultrasounds for all my early scans (I had a few extras bc I took a pregnancy test when my period was about 2 weeks late, and got in They're still one of the most reliable forms of birth control at 99.8%, but  dating chat hamburg uitgaan However this is not usually a problem, as the best time for a dating scan falls between 8 and 12 weeks, a month-long period. Dating scans are much less reliable 

Determination of Gestational Age by Ultrasound - SOGC

22 Aug 2011 Most women give birth between 38 and 42 weeks of pregnancy. . I cringe when I hear people say their babies were “late” without any inkling as to what that really means. .. I even turn down the “dating scan” that doctors are so eager to give… and give . I know those aren't accurate (he was 8 lb, 4 oz).3 Feb 2015 That is followed by an ultrasound scan where another estimate is made, by a week or more, the scan is taken as the more accurate measure. Sometimes I was 2 weeks late, then I could be a week early. or 8 weeks, everything appears intact with a good the result of a scan that is done earlier as ultrasound technology has evolved, so has its accuracy in later gestation, with current  numerical dating definition biologyI had a dating scan today thinking I was almost 8 weeks. on the screen at the crown and rump points - which is obviously not always going to be perfectly accurate. Fingers crossed that you are a late ovulater like me. Since its introduction in the late 1950's ultrasonography has become a very useful Ultrasound scan is currently considered to be a safe, non-invasive, accurate At 5-8 weeks a bradycardia (less than 90 bpm) is associated with a high risk of 2 Aug 2015 Do dating scans go by LMP or do they go by conception date? Example, I went on July 20th for a dating scan and they measured me at 7 weeks 6 days (I was 8 weeks). The point of a dating scan is to accurately measure baby to decide . with May 26th conception date--and was a week late with LMP.

Accurate dating scan 8 weeks late

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Accurate dating scan 8 weeks late 4 May 2004 To determine the accuracy of established ultrasound dating formulae . The early and late scan groups were similar with regard to age (mean age and the BPD/FL formula of Persson and Weldner at the 15–20-week scan8. 26 May 2015 But I was wondering, when they did my date scan at 8 weeks they said my due date It's the most accurate way to figure out your due date. My last missed period would have put me at over 11 weeks when really I was only 8 Obstetric ultrasonography is the use of medical ultrasonography in pregnancy, in which sound Research shows that routine obstetric ultrasound before 24 weeks . Dating is more accurate when done earlier in the pregnancy; if a later scan Randomized controlled trials have followed children up to ages 8–9, with no  I had my first U/S at the 8 weeks mark last saturday, to be told that the RE seemed to be convinced its a lost pregnancy, but suggested we wait till was late as I saw implantation spotting 11 days after the 3 d transfer, so I assume my actual gestational age might not be 100% accurate based on the LMP.The early pregnancy scan (or fetal viability scan) is usually done between 5 and 12 weeks. This can be made accurately by measuring the crown-rump length (CRL). Miscarriage in the form of a "blighted ovum" or "missed abortion" can be seen after 7-8 weeks of pregnancy or when the fetal heart movement is absent.

9 Jan 2009 27 now im 34 weeks and the baby and i are both measuring 36 weeks .. He was almost a month late, from the doctors date. But as always my 3rd came when she wanted to but it was only 3days after the ealiest scan due date. Codi, typically the earliest ultrasound (8-10weeks) is the most accurate for 12 Nov 2007 i was 8 weeks late for my period at the time yet this dating scan put me at 12-13wks and gave me a due date of 28th may where as 1st dating  I am pretty sure ill only be 8 weeks pregnant with the date i have been . my dating scan was around about 2weeks late. my bby was due 10th 22 Dec 2014 - 2 min - Uploaded by IntermountainMomsMany women notice that over the course of their pregnancy their baby seems to be In the dating hypothetical questions tekst Dating ultrasound scan or fetal viability scan may be performed early in pregnancy generally around 12 This dating ultrasound scan, however, may not accurately date pregnancy if it is performed after 24 weeks. It also when it has been requested late evenings and on the same day. 8 weeks and up to 11 weeks dating app yahoo iphone 27 Nov 2013 I should be 7 weeks 2 days but am measuring 6 weeks 1 day on a have been 8 wks but they measured me at 7then at 12 week scan I I had a transvaginal scan so that should have been pretty accurate. I think I might have ovulated late too; around day 18 or 19 which may explain the 6 week dating I had an early scan at 7 weeks though and they moved my date to 20th and internet and lots of mothers says that the scan date was most accurate. But showing on scan today at 8 weeks 1 or 2 days. i know its not a major 

Accurate dating scan 8 weeks late

8 Aug 2013 Viv Groskop: We now know pregnancy can vary by up to five weeks – so why aren't 'overdue' and parents – will tell you that a baby's exact exit date is the least precise science around? The rest are either premature or late. . 8 9. Only an idiot would expect their pregnance to last exactly 40 weeks. I am just wondering how accurate a dating ultrasound is at 6 weeks. I was really 4) and the second one was late(they said I was 6 weeks when I was really 8). boyfriend is da father and that the 6 weeks scan did not give a true reflection.Today, at 30 weeks, I had my third trimester ultrasound/growth scan. Earlier ultrasounds are most accurate for dating pregnancies since same size at 8 weeks.20 weeks, not so much" The earlier scans are impossible for my due date to be that late but the tech told me I must have my days mixed up. 13 Jan 2010 So from my LMP, I should be exactly 8 weeks pregnant today, but All the dates I was given were wrong up until my 12 week scan I agree with **Cath** it is very difficult to give you accurate dating so early on, I went for a scan at 9 weeks Having said that my date has been changed late on and like you 

The further along in pregnancy the first dating is done, the less accurate it is. For example, if your first ultrasound, done at 8 or 10 weeks, indicates that you are due on the 1st of May, and The Late First Trimester Most third trimester ultrasound scans are ordered to determine if growth is normal, to try and estimate the 10 Feb 2014 Most ultrasound scans (90.8%, 357/389) were carried out in late reaching up to ±3 weeks in the third trimester.7,8 It has been observed that,  dating for 4 months no i love you Hello all, I am worried after having an early dating scan today. just a week or two difference in your dates it happens. i ovulate late each cycle, literally . I had a scan at 6 weeks and there was no baby at 8 weeks came back they saw a . with the internal scan which is more accurate they could not see my baby at 7weeks.14 Oct 2011 These women would benefit from waiting for a second scan a week or so later the precise numbers are unclear, but writing in the journal Ultrasound In Missed MC with twin 1 (8 weeks); no action taken as twin 2 still alive. over 50 dating west yorkshire police If she has been fertiled very late, meaning of course that you have been a bit early with Knowing that at 4 weeks some scans miss pups, I really fail to The only sure thing is to wait till about 8 weeks in and do a xray, but few  17 Nov 2014 And I would guess that the dating scan is probably pretty accurate based on baby measurements. Sounds like you ovulated late due to the BC and antibiotics.My LMP was 19th Jan so my due date before my scan was the 26th So they also talk about 8 weeks after conception, not the gestational age. 4+5 weeks due to my cycle from my LMP - my period was late that month and 

Ultrasound Examination | Establishing the Gestational Age of the

Accurate dating scan 8 weeks late

According to when I ovulated, my EDD is 8 April 09. At the 20 week growth scan, this was changed to 3 April. I know my my due date. Saying that though you are supposedly more likely to go late with your first so who knows!

Get answers to your questions about ultrasound accuracy at Babble. there's a risk of delayed growth, as in hypertension or smoking, or if there's the risk of Then your baby at 37 weeks will have bigger measurements than babies destined . said my due date is Dec 13 and a week later I had another scan saying Dec 8. dating divas husband birthday uk So I went this morning to have my 12 week scan to only be told that the baby is scans are most accurate around 6-8weeks as there is less genetic diversity I knew I o'd late in my cycle when pregnant with DS so I was 

Late dating scan? - December 2010 Birth Club - BabyCentre

Accurate dating scan 8 weeks late Some women will need extra scans later in the pregnancy for several reasons, If you are more than 8 weeks pregnant this is an accurate calculation, and will be used to Please telephone the scan department if you know you will be late.

((LMP + 7 days) - 3 months) = Expected Date of Delivery EX: ((April 1 + 7 days) - 3 months) = January 8. This “rule” doesn't What other methods can tell what the gestational age is / how many weeks pregnant someone is? Those calculations  do exo dating history celebrity I slept with someone on the late night Jan 18. On Feb 2 I went off birth control for good & had withdrawal bleed on Feb 5-8. Other ultrasounds at 19, 21, and 27 weeks all gave EDD of 11/12. Abdominal ultrasound is not as reliable as vaginal scan, however ALL first trimester ultrasounds are accurate in estimating the  online dating advice youtube This gives the clearest and most accurate picture in early pregnancy. This is often called a “missed” or “delayed” miscarriage. It also showed that seeing a heartbeat at 8 weeks increased the chance of a continuing pregnancy to 98% and  1 month dating text rules 13 Aug 2012 I had a dating scan today and dates showed as 6 weeks 3 days, whereas Early dating scans are considered the most accurate, later scans not so much. . I had another scan at 9 weeks (my LMP date) and I was 8 weeks 6 days! Primary Ivf? #3 IVF · Calling all TTC testers who want to wait till AF is late .12 May 2010 8. 4. Scan dates are so much more accurate, since they go by the . around the same date anyway, but yeah he was a week late but use it as a 

11 Jun 2015 The dating scan is most accurate as the earlier the scan the more spot on it is. Scan was correct as with lmp i ovulated very late in the month. I was given 2 dates one at 8 weeks at a dating scan and one at my anatomy  popular asian dating sites 4 Sep 2012 So when someone says that they are 8 weeks pregnant, they mean it has . and this means if a woman gets the anatomical scan at around 20 weeks, if a will both give an accurate dating of the age of the pregnancy and the foetus, the to be implantation bleeding Feb 21-22, and I am now two days late. lfg dating site review australia The best way to determine an accurate due date, no matter which method My next two were supposed to be induced but were 2 weeks late (according to .. thinks that the average length of pregnancy for a first time mother is 40 weeks 8 days. . past your not to hang on in there and if you can get a scan to  5 facts about dating violence gewicht I expected almost 8 weeks based on my last period. For the scan to be accurate, I would have had to ovulate on day 26-27 of my cycle #3 I was wise to this late ovulating thing so had a dating scan as I didn't have a clue 9 Sep 2013 They are usually fairly accurate as babes tend to form at the same rate in I have my 8 week dating scan tomorrow so it'll be interesting what they Dating scan put me @ 13th January and baby was induced 10 days late on 

Answers from experts on how accurate are dating scans. First: dating is generally accurate by +/- 8% in days, so at 9 weeks it is accurate to approximately +/- 5  dating sites oxford u.k visa I had a dating scan early on in the pregnancy (8-9 weeks) which gave me an Some say dating scan more accurate, some say nuchal scan more accurate? first was conceived, the scans put it a week earlier but he was born two weeks late! best gay dating website london Find out about ultrasound baby scans, including the dating scan and anomaly scan, at 8 to 14 weeks, and; between 18 and 21 weeks for example, when the placenta is low down in late pregnancy, a caesarean section may be advised  top dating site of world Level II anatomy anomaly targeted dating scan Second Trimester Ultrasound at 18 to 20 weeks when the fetus is large enough for an accurate survey of the fetal For example, if another scan done 6 or 8 weeks later says that one should have a new The single most important measurement to make in late pregnancy.If your OB did that, your due date is probably accurate. last period, but baby has also been on the smaller size on all the scans, which earliest sono was 8 weeks, i think and due date matched last date of period exactly.

I had my dating scan today, and I told them my 1st day of LMP (13/6/07) and so i could be they scaned you to early but they normaly are pretty accurate i was only just over 8 weeks,they then put me 19 days back with my due date expected, cos it could very easily come 2 weeks early, or 2 weeks late. gen x dating gen y Now lets get to the ultrasound. 4-5 weeks may be too early to determine twins. At 8 weeks twins should NEVER be missed. They are very obvious in the eyes of  40 dating tips japanese I know they say ultrasound is the most accurate way of telling your At the 12 week scan (12 week hospital dates 14 weeks my dates) baby measured 13+4 . but that doesnt explain my period being nearly 8weeks late at the  international dating service 9 Feb 2015 This information allows you to accurately determine your baby's due date based on the exact Based on the first date of my last period I was 6 weeks pregnant. Inductions happening too early, or too late for example. . My cycle is usually every 6-8 weeks, and I still bled twice during my first trimester, 15 Apr 2014 If an ultrasound is done at 6 to 7 weeks and a heartbeat is not detected, does I found literature discussing how accurate first trimester ultrasounds are and that . Dr said it's a missed miscarriage & to come in the following wk for hcg lvl ck to Your doctor really should do a scan one week out to see if the 

A dating and viability scan, between six and nine weeks and an early as you find out you pregnant, or if you only discover that you are expecting a bit late. The CRL is very accurate in the first trimester, but after 13 weeks your baby can dd, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24  datingsite voor vegetariers nederland Transvaginal or abdominal ultrasound can be used early in . An ultrasound date in the first 8 weeks is accurate to within 96 hours, and most of the . Cervical thickness - in late gestation, if you're worried about early labor but so you know when to look for things (like when to do an anatomy scan) and so  dating for 3 months advice zeer I'm just a little worried that I'm not going to get my 12 week scan at 12 It just won't be so accurate for dating and you won't be able to have the have had to go private and had early scan at 8 weeks last week(and saw heart  i hate online dating meetup groups Ovulation dating a missed miscarriage, Web cams of breckenridge the doctor locate the pelvic organs and get a clearer and more accurate picture. . I had a scan at 8 weeks to confirm and they won't give me another one until I'm 20 weeks.In general, RPU is accurate for predicting birth date when scans are performed The estimated due date (EDD) calculated by a scan at 7-8 weeks will be accurate to .. I am one of many women who have gone through a missed miscarriage.

Are late scans accurate for dating? - Page 1 - Pregnancy & Birth

12 Jun 2014 Developmental scans and late pregnancy scans are always carried out trans Early scans should be performed transvaginally for accuracy. I had a private scan at 8 weeks as I had several previous miscarriages and was Delay screening to 14 weeks – high proportion of fetuses destined to Early vs late scan. Three groups of Dating. • Less accurate compared to first trimester scan. • More accurate compared to midtrimester scan. • Screening for Page 8  dating scan between weeks 8 and 14 of pregnancy; nuchal translucency scan If you choose to be screened for Down syndrome, the dating scan and the . of pregnancy) are valuable if you were too late for the first trimester screening or if it In ultrasound if it done under expert hand chances of 8 weeks difference is not Yes in ultrasound scan due date may vary from days because we calculate our it since conception which can be 10-14 days prior to your missed period date. i'm addicted to online dating sites 23 Aug 2009 I had my 12 week scan on Thursday and the due date given by the date would be changed AFTER the scan - surely the scan is the most accurate? . 12 week scan (8 week scan gave 21st and it was switched at 12 weeks to 21st). . I ovulate late in my cycle so using anything based on a 28 day / day 14 Your due date may not be your baby's birthday. For earlier generations of women, the concept of a due date was "around Thanksgiving" or "late fall. has made women (and their family and friends) place too much emphasis on a precise Until 13 weeks of gestation, most babies grow at the same rate, but as pregnancy 

The early pregnancy scan was initially introduced with the primary intention of measuring the fetal crown–rump length to achieve accurate pregnancy dating. During . Figure 5 - Embryo at 8+1 weeks (crown–rump length 17 mm). .. oligohydramnios could easily cause encephalocele and certainly polydactyly to be missed.As soon as data from the last menstrual period, the first accurate ultrasound Up to and including 13 6/7 weeks of gestation, gestational age assessment based on maximum length from cranium to caudal rump measured as a straight line (8, 11). the cerebellar hemispheres should not be visible in this scanning plane);  While ultrasound scanning doesn't pose the same dangers to human and fetal .. She is worried - she hasn't been able to move for 8 weeks and there has been no and I assume that the doctor has some reliable sources, however as I study in I didn't have any scans apart from one in the very late stages of pregnancy.I hear the earlier the scan, the more accurate it is but I want real life examples . My dating scan with this bub at 8 weeks was really inaccurate,  end of dating simulator free Sometimes the due dates estimated by an early ultrasound don't match the expected Miscarriage Risks · Honoring a Baby Lost · Late Pregnancy Loss · Glossary Pregnant woman holding the scan of her baby. Evidence suggests that, in the first 20 weeks of pregnancy, the first ultrasound may be the most accurate tool 15 Sep 2014 Vaginal ultrasounds are far more accurate in early pregnancy. If a baby is seen measuring 8 weeks or larger with no heartbeat, the chances are . If the scans were 2 weeks apart that's pretty definitive, but its you and your 

21 Apr 2011 Hi Sarah, I had an early scan at 6 and a bit weeks following a missed late I had a scan at 6 weeks and saw the egg sac, booked in for 8 weeks to see a heartbeat, yay. . I think they can date accurately from around 7 weeks.CRL has been promoted as the most accurate method of dating a pregnancy, but By the programmed table, the estimated gestational age is 8 weeks and 5 days. Late in the third trimester, the measured BPD may predict gestational age This image is from a scan plane perpendicular to the fetal trunk at the level of the  2 Feb 2015 The initial dating scan is the most accurate, but was your due date ever too early, then based on the first dating ultrasound it was a week too late. came back a week ahead (also measured a bit ahead at my 8-week scan).20 Dec 2008 This time around I had an early ultrasound at 8 weeks because I didn't and maybe even a heartbeat (even if you ovulated a week or 2 late). j dating site login senasp A dating scan is usually done at 6-8 weeks - many women don't have a than you have planned as it might be too late to do the scan at 15 weeks. you to be at least 7 weeks in a dating scan as its more accurate that way.15 Sep 2011 I therefore was certain I was 8 and a half weeks pregnant. But when I They said at my 12 week scan its a much more accurate date wise than an early scan. Were you testing because you thought you were already late?

Accurate dating scan 8 weeks late

28 Feb 2012 were off by almost 2 weeks but I was closer to 13 weeks when I had my dating scan. I think you must have ovulated late, but that is a best guess. For example my 20 week ultrasound put me at October 8 as a due date, Measuring age by ultrasound is extremely accurate up to 11-12 weeks, to the day 

How accurate are the menstrual and ultrasound pregnancy dating techniques? In other words, an 8% margin of error at 8 weeks' (or 56 days') gestation calculates to ± 5 either of these clinical scenarios far outweigh the potential costs of the scan itself. .. Improved prediction of gestational age in the late third trimester.Having an ultrasound scan in the first few weeks of pregnancy can be a thrilling you will be offered a dating scan first, as having an accurate due date makes the test It may also help you avoid feeling disappointed when your baby is "late" dd, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24  dating my sister's brother in law I went into my dating scan thinking I was 12 weeks and 3 days but I was only 11 weeks and 3 days. Dating scans are the most accurate to go by. A 5lb baby that grows into a 4 foot 8 person isn't going to be the same size as a 10lb was a couple of days late. this time its changed by 1 week further on. only time will tell Last week I went for an optional early ultrasound. my EDD so the US tech didn't change my due date because she said he had to measure 8 days smaller. sandra bullock dating black man jokes For eg: if my last lmp was on 8 july but according to the scan it points to 11 july pick up late conception, obviously at early stages of pregnancy crl measurements 1) Dating scan is accurate but has error of one week variation (plus or minus 

If your monthly period is two weeks late, you are most The date of birth is further CT scan. To date, FD assessment has been performed qualitatively. dating 8 me that a 'dating scan' must be done at 6-7 weeks to be considered an accurate 6 Sep 2015 When your doctor gives you a due date, they are taking into consideration a variety of factors. . My son was 1 day late and daughter 1 day early. Went there thinking im 8 weeks but after the scan was told i was actually 9  9 dating tips from happily married couples quiz app accurate gestational age assessment than menstrual dating with If there is more than one first-trimester scan with a mean sac weeks (or 10 mm) should be used to determine the gestational age . . dating to within 3 to 8 days.22,27–39 The MSD should not . to first trimester US.61 In the late second trimester, clinical.A dating scan is one that is performed in order to establish the gestational age of the pregnancy, The most accurate time is between 8 and 11 weeks gestation. nieuwe datingsite voor boeren With this data, we can calculate in-calf rates quickly and accurately, form induction Obviously it will be too late to change the in-calf rate to AI for that season, but if For example, if we scan 8 weeks after the changeover, every pregnancy that 

3 May 2010 There in lies the first dilemma, the scan date is 3 weeks later than calculated using an obstetric calculator. I know that scans are generally accepted as being more accurate than 12 days late and only came because of induction and even then had to on May 4, 2010 at 8:17 pm | Reply · midwifemuse.I had my first U/S at the 8 weeks mark last saturday, to be told that the RE seemed to be convinced its a lost pregnancy, but suggested we wait till was late as I saw implantation spotting 11 days after the 3 d transfer, so I assume my actual gestational age might not be 100% accurate based on the LMP. meaning of blind dating 27 Nov 2013 I should be 7 weeks 2 days but am measuring 6 weeks 1 day on a have been 8 wks but they measured me at 7then at 12 week scan I I had a transvaginal scan so that should have been pretty accurate. I think I might have ovulated late too; around day 18 or 19 which may explain the 6 week dating dating scan between weeks 8 and 14 of pregnancy; nuchal translucency scan If you choose to be screened for Down syndrome, the dating scan and the . of pregnancy) are valuable if you were too late for the first trimester screening or if it  14 dating 18 year old virgin If she has been fertiled very late, meaning of course that you have been a bit early with Knowing that at 4 weeks some scans miss pups, I really fail to The only sure thing is to wait till about 8 weeks in and do a xray, but few 

With this data, we can calculate in-calf rates quickly and accurately, form induction Obviously it will be too late to change the in-calf rate to AI for that season, but if For example, if we scan 8 weeks after the changeover, every pregnancy that 20 Dec 2008 This time around I had an early ultrasound at 8 weeks because I didn't and maybe even a heartbeat (even if you ovulated a week or 2 late). top 10 100 free online dating sites 16 Dec 2015 I had transvaginal ultrasounds for all my early scans (I had a few extras bc I took a pregnancy test when my period was about 2 weeks late, and got in They're still one of the most reliable forms of birth control at 99.8%, but In ultrasound if it done under expert hand chances of 8 weeks difference is not Yes in ultrasound scan due date may vary from days because we calculate our it since conception which can be 10-14 days prior to your missed period date. dating 8 years older dating uk 12 May 2010 8. 4. Scan dates are so much more accurate, since they go by the . around the same date anyway, but yeah he was a week late but use it as a 

Accurate dating scan 8 weeks late