So I've been on minastrin since July, taking every pill regularly, and I started bactrim 6 days ago (continue it for 4 more days) for a bacterial infection in my throat and I had sex. Should I resort to a back up method and buy some plan b? My doctor had told me that antibiotics decrease birth control a then said I wouldn't have to worry because bactrim wasn't going to do that but I still don't know. But looking online I don't know if they were just saying that or if I misunderstood.
If the dr told you that, he was wrong. What you should have done was use a condom while you were on that and a week after you stopped. So you've got a few more days on it and a week after that you can use a condom. What part of the pill cycle are you in? I hate to just say use plan B without knowing that, because I don't like plan B use. Have you had any spotting lately?
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