A member asked:

If i had sex a day before ovulation and my period came on four days late could i b pregnant?

A doctor has provided 1 answer
Dr. Serena Chen answered

Specializes in Reproductive endocrinology and infertility

Yes: The fertile window lasts from just when you stop bleeding to 24 hours post ovulation. In a 28 day cycle, that means from day 5 to 16 to 18 or your cycle. Please get a pregnancy test right away and speak with a doctor so you get the care you need.

Answered 11/20/2013

5.2k views

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