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A female asked:

I took bactrim (sulfamethoxazole and trimethoprim) for a uti the last 2 days of my active pills of aviane. then had sex on the 3rd day. could i be pregnant?

1 doctor answer1 doctor weighed in
Dr. Matt Wachsman
Internal Medicine 36 years experience
Well.. yes.. but: antibiotics other than RIFAMPIN do not change risk of pregnancy nor do they affect birth control.

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Last updated Nov 16, 2014

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