I had sex with month with out a condom but i am on bc pills. about a week before my period i had brown discharge or what looked like old blood. should i be worried about pregnancy? i never missed a pill and always take it on time i've been on them for abo

Don't worry: It is very common to have a little spotting once in a while when you are on the pill. These estrogen and progestin based hormones suppress ovulation, but can have variable affects on the uterine lining from month to month. Taking the pill every day & at the same time, as you do, is most effective approach. Remember condoms if you need sex transmitted disease prevention/not long term monogamy:)