A member asked:

I have an 8 wk ultrasound done 4/24. it dated me at 8 wks/5 days. do i use a calender and go back 8 wk/5 days to determine the possible conception dt?

A doctor has provided 1 answer

Dr. Dennis Higginbotham answered

Specializes in American Board of Obstetrics and Gynecology

NO: If the estimated gestational age is 8 weeks and 5 days then the likely conception date would be 6 weeks and 5 days before the date of the ultrasound. Pregnancy dating is based on the LMP which would be two weeks before ovulation and conception.

Answered 1/28/2015

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A member asked:

I have an 8 wk ultrasound done 4/24. it dated me at 8 wks/5 days. do i use a calender and go back 8 wk/5 days to determine the possible conception dt?

A doctor has provided 1 answer

Dr. Dennis Higginbotham answered

Related Questions

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I am 8 weeks 5 days according to an ultrasound I have had done. Since I have had an ultrasound can I get an accurate conception date?

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