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A member asked:

I took bactrim (sulfamethoxazole and trimethoprim) once literally one pill while on birth control and had unprotected sex that day what are the chances of me getting pregnant?

A doctor has provided 1 answer

Low probability: If you were taking your birth control like you were instructed it is a low probability of being pregnant. Please only take antibiotics as prescribed. Short inadequate doses of antibiotics create bacterial resistance which will make it harder to treat future infections.

Answered 7/31/2014

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