A member asked:

I'm on birth control and was on a z pack. i had un protected sex a week and a few days ago i've had spotting for the past 4 days what's going on?

A doctor has provided 1 answer

Antibiotics...: ...can decrease the effectiveness of your birth control pill, so pregnancy is possible. More likely the combination is causing some intermenstrual spotting. Keep taking your pill as directed, and see what happens as your period comes.

Answered 11/25/2016

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