A member asked:

In 3rd week of last months bc pills i took a weeks worth of penicillin, now it's second week of new pack and im spotting. why? ps, i'm not pregnant.

A doctor has provided 1 answer

Antibiotics : Antibiotics can decrease the effectiveness of oral contraceptives and cause the spotting. It is also possible to have spotting if you missed any pills or were not taking them at the same time every day.

Answered 9/28/2016

5.4k views

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