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A female asked:

How possible is it that i am pregnant? i was on the three month form of birth control and i did not miss any pills, and when i got to the end of the three months i did not get my period. i am now 5 weeks from that time and i still do not have my period.

2 doctor answers5 doctors weighed in
Dr. Laura McMullen
Pediatrics 22 years experience
If : If you took your birth control correctly (taking a pill every day around the same time every day without missing any) then you have a less than 1% chance of being pregnant. There are other reasons besides pregnancy that can cause a woman to miss a period such as: stress, diet, excessive exercise or a hormone imbalance such as with a thyroid disorder or polycystic ovarian syndrome. Even certain birth control pills with very low estrogen levels will prevent a period from happening. If you continue to have an irregular cycle and it is concerning for you, you should give your doctor or your ob/gyne a call. Good luck!
Dr. Otto Placik
Surgery - Plastics 35 years experience
Missed period v preg: Have you actually performed a pregnancy test or are you just guessing because you missed a period? I would definitely perform a urine pregnancy test first.
Last updated Oct 1, 2017


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