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Miami, FL
A 40-year-old female asked:

Unprotected sex with my boyfriend wednesday. i took the morning after pill 18 and a half hours later. my period is 3 days late. what are the chances?

1 doctor answer2 doctors weighed in
Dr. Larry Xanthopoulos
Pediatrics 22 years experience
Unlikely: It sounds like you had intercourse very close to your expected period time and you took Plan B at a good time, so it is unlikely but not impossible. Wait a few more days and if no period then perform a pregnancy test

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Last updated Mar 17, 2015

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