Hi! If you were my patient I would advise you that it is possible to conceive while menstruating, but rare. Also it is possible to conceive while taking birth control pills, but rare if you are taking them according to the package instructions. If you are super worried, you could take the morning after pill (Plan B or Next Choice), BUT I would think that might be overkill. Good luck! Dr B
Were you by chance on any antibiotics recently? That can lower the effectiveness of birth control and they always recommend using back up contraception. I know a few people who got pregnant while on antibiotics. Just a thought.
I got pregnant with my son on birth control & didn't know I was pregnant til I was 12wks and that's when my doctor advised me to stop taking the pills. I was still getting my period normally ask I had no idea I was pregnant til I missed my period that 3rd month
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