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A member asked:
I have been told that i am the father of an unborn child. the date of conception does not match, it is out by about a week. how accurate is it?
A doctor has provided 1 answer
Depends: Due dates are an approximation they aren't an exact science. Even a 1st trimester ultrasound is no better than about +/- 7 days. So, if her "conception date" is close to your timing of sexual encounter then you need to do a paternity test. A third trimester ultrasound is only accurate within +/- 21 days.
Answered 11/6/2020
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