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Hampton, VA
A 19-year-old female asked:

Im 8weeks 3 days pregnant as of today i received my ultra sound sept 15th 2014. my lmp is off by two weeks i'm irregular . what is my conception date?

1 doctor answer • 1 doctor weighed in
Dr. Kevin Dew
Dr. Kevin Dewanswered
Family Medicine 35 years experience
Due date: The accuracy of an 8 week ultrasound is within about 7 days. The due date you received from this scan is your due date. Don't let anyone change it as later scans are less accurate.
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A 22-year-old female asked:
Date of conception w irregular cycle? 8/22 US 6w 1d. 8/25 US 6w 4d. 9/7 US 8w 3d. 11/20 US 20w 3d. How accurate are these? was I pregnant before Aug?
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If Im 5 weeks pregnant when is my conception date! Also, is my conception date the same as the day I had intercourse? I have an irregular cycle so Im unsure?
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A 30-year-old female asked:
Do ultrasounds add two preconception weeks when measuring baby? If baby measures 12 w is this supposed to date to LMP or conception?
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Don't need to pinpoint conception day, but two first trim ultrasound give same due date we have no lmp to go off, how accurate is age of our baby?
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A 21-year-old female asked:
I had sex on the 31st August & 12-14th September. My due date has been given as 4th July and 12 weeks pregnant. Which date is a more likely date of conception? My periods are very irregular to determine from those dates?
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Last updated Sep 21, 2014

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Female health

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