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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How To Find Out Date Of Conception?

I had unprotected sex Jan 11 and March 1. I usually have my period at the beginning of the month but I dont remember having one until feb 18. I got an ultrasound aug 8 and it stated I was 26 weeks. Is the correct because if I count back 26 weeks then I conceived feb 7
Thu, 25 Sep 2014
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General & Family Physician 's  Response
Hello ma'am and welcome.

An ultrasound only provides an approximation and so does the LMP method. In my opinion, the most likely date of conception was March 1st.

Hope this helps.

Best wishes.
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How To Find Out Date Of Conception?

Hello ma am and welcome. An ultrasound only provides an approximation and so does the LMP method. In my opinion, the most likely date of conception was March 1st. Hope this helps. Best wishes.