Accuracy of dating scan at 7 weeks

24 year old dating an 18 year old

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I am just wondering how accurate a dating ultrasound is at 6 weeks.I had one done at 6 weeks 5 days and another one at about 7 weeks. . believe that my second boyfriend is da father and that the 6 weeks scan did not give a true reflection.

Accuracy of transvaginal ultrasounds for early pregnancy dating

This scan is performed in the early weeks to confirm the pregnancy. You might be However, a dating scan can never be 100% accurate. Very occasionally the 

11 Jun 2015 The dating scan is most accurate as the earlier the scan the more spot on it is. Yes I was given a date 7 days different and my first scan and then a at my 12 week scan I was told the correct date exact on LMP and then I