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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How To Know Correct Date Of Conception?

I have found on many different websites that there are different dates of conception. I wanted to know what would be the probable dates of intercourse, are those the same as the dates of conception? My doctor gave me a due date of September 21st, and he said most probable date would be December 15th. Websites have given me far different answers. Any suggestions?
Tue, 22 Jul 2014
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Dermatologist,  's  Response
Thank you for query.The dates are not clear.Pregnancy depends on timing of ovulation and intercourse.Best period for intercourse is after 9th day and before 21st of menstrual cycle to conceive if regular cycles.The life of ovum is 1 day and life of sperm is up to 72 hours.usually Ovulation occurs around 14 days prior to the period onset. so intercourse any day up to 3 days prior or after ovulation are the conception dates.You can calculate correct dates also using ovulation day strip.
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How To Know Correct Date Of Conception?

Thank you for query.The dates are not clear.Pregnancy depends on timing of ovulation and intercourse.Best period for intercourse is after 9th day and before 21st of menstrual cycle to conceive if regular cycles.The life of ovum is 1 day and life of sperm is up to 72 hours.usually Ovulation occurs around 14 days prior to the period onset. so intercourse any day up to 3 days prior or after ovulation are the conception dates.You can calculate correct dates also using ovulation day strip.