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A 19-year-old female asked:

Had unprotected sex with partner,took morning after pill 30 hours after due to worry even though he did withdrawal method. period is 5 days late, should i worry? breasts are so sore, is that pms?

1 doctor answer1 doctor weighed in
Dr. Boniface Ikejiani
Obstetrics and Gynecology 28 years experience
Delayed menses: A 19 yo female who had unprotected intercourse and took morning after pill 30 hours after intercourse now present with delayed menses and breasts tenderness. When plan B is taken within 72 hours after intercourse, it can reduce risk of pregnancy up to 89%. Please not there is 11% failure rate as in your case. It is prudent to take pregnancy test to rule out pregnancy in your case. Good luck.
Last updated May 13, 2021

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