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A member asked:
I'm on the pill and had sex without a condom yesterday. if i start antibiotics today for a uti, will it affect my protection from last night?
A doctor has provided 1 answer
No: You say are on BCP. They work by fooling your body into thinking it is pregnant and so not releasing a new egg to be fertilized. An antibiotic does not interfere with that. There are plenty of drug-interaction websites available on the net that you can check if you are ever worried about a particular drug interaction.
Answered 11/6/2015
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Sex last Friday with condom, took plan b next morning, got a uti and started bleeding today could I be pregant?
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