A member asked:

Having my period on a usual time after 21active pills, means 100% i am not preg?.. i was thinking it didn't work well bcoz i had antibiotics.

A doctor has provided 1 answer

Bleeding and OCP: I never like to say 100% about anything in medicine but the chance of you being pregnant is very unlikely. Very few antibiotics reduce the effectiveness of birth control pills and those antibiotics are uncommon ones.

Answered 1/23/2014

4.9k views

Thank

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