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A 18-year-old female asked:

if you have sexual intercourse and sperm enter the vagina and the next day you start you period.can you be pregnant?

2 doctor answers4 doctors weighed in
Dr. Thomas Heston
Family Medicine 29 years experience
Yes: Unlikely, but yes.
Dr. Neeoo Chin
Fertility Medicine 40 years experience
Probably not: If the menstrual cycle came at the correct time and is the correct amount of flow then the likelihood of conceiving having had intercourse the day before is almost little to none.

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Last updated Feb 28, 2014

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