U.S. doctors online nowAsk doctors free
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 24 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
Created for people with ongoing healthcare needs but benefits everyone.

Related questions

A 20-year-old female asked:
I had unprotected sex I took the morning after pill and now my period is 6 days late.. I can feel period cramps and pain and also brown slimy spots..and my Circle is not stable?
Dr. John Berryman
Obstetrics and Gynecology 56 years experience
Possible pregnancy ?: With a history of regular periods, and unprotected intercourse, the "morning after pill" may not protect against pregnancy. If being "six days late" ... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A female asked:
Missed period due to many factors...? I am about 12 days late on my period. About 9 weeks ago i had unprotected sex but took the morning after pill the next day. About 3 weeks ago i had sex with a condom. I don't feel queasy, have tender breasts, have foo
Dr. Joy Jackson
Family Medicine 21 years experience
I : I recommend you take another pregnancy test or go in to see your doctor for testing.You may have tested too early. On the other hand, you are right in... Read More
Created for people with ongoing healthcare needs but benefits everyone.
View all answers
A female asked:
Im late but took test negative and unprotected sex but next day morning after pill,will i get preg?when is my period going to come?
Dr. Mary David
Specializes in Obstetrics and Gynecology
Hard to say: Emergency contraception is 95% effective if taken within 24 hours after unprotected sex but it does disrupt the normal menstrual cycle and causes irre... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 29-year-old female asked:
I use Yasmin+. After my previous period I was late in starting the next pills. I used about 3 when I had unprotected sex. I used the Norlevo morning after pill with the Yasmin. Should I wait for my next period to be safe?
Dr. Matt Wachsman
A Verified Doctoranswered
Internal Medicine 38 years experience
Not sure what ?: ok, you've not been taking the OCP as directed. They do not work well when used in a manner in which they were not designed and the norlevo is 90% lik... Read More
Created for people with ongoing healthcare needs but benefits everyone.
A 16-year-old female asked:
I had unprotected sex last Monday but he didn't finish at all. I took the morning after pill. I'm late on period but have cramping why?
Dr. Lori Mcneal
Obstetrics and Gynecology 36 years experience
Late period: First of all, a man does not have to finish to achieve pregnancy. There is sperm in the preejaculate so pregnancy is possible. If you are late and c... Read More
Created for people with ongoing healthcare needs but benefits everyone.
Last updated Mar 17, 2015

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.