A member asked:

I am due 7-31 when did conception occur and what days of sex would have caused me to get pregnant my lmp was oct 25-31 had sex oct 25 and 10/31-11/17?

5 doctors weighed in across 2 answers
Dr. Robert Grindstaff answered

Specializes in Addiction Medicine

Based on those dates: you conceived on about Nov 8 2014 so you could have had sex about 4 2-4 days before conception

Answered 5/31/2015

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Dr. Donald Steinmuller answered

Specializes in Nephrology and Dialysis

11/6-11/15: Calculated date of conception (DOC) is 14 days after LMP or 11/8. But this is based on 28 day cycle. Normal menstrual cycles vary 28-35 days. If your cycle was regular in the past your DOC is estimated to be 14 days prior to expected date of onset of period. So if your cycle was normally 35 days, estimated DOC is 11/15. Intercourse is usually 0-2 days prior to DOC. Check with OB doctor to confirm

Answered 6/7/2015

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