United Kingdom
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 answer • 1 doctor weighed in

Dr. Boniface Ikejianianswered
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.
566 viewsAnswered >2 years ago
Last updated May 13, 2021
People also asked
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits - just $39!
50% off with $15/month membership
Disclaimer:
Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.