Yesterday my boyfriend and I had sex, we used a condom and my periods been pretty light lately. After he came he went to take the condom off and there was a huge rip in it, there was all over my underwear and blood. I tried going pee right after wards but couldn't, I am still bleeding right now. We were going to get the plan B pill but the pharmacist told my boyfriends mom if you have sex on your period and he cums in you and you bleed after (still have your period) you won't get pregnant because the sperm can't live in the blood? I don't know what too do.. Should I be worried?