help! bleeding after sex

i had sex today with my boyfriend. we are always safe, we use condoms and he pulls out but today when we had sex it hurt so badly in the beginning. there was no foreplay or anything and it was burning really badly. and this time it was a bit aggressive as well. i went to the bathroom at my friends house which was 2 hours later and i was bleeding! this freaked me out knowing about implantation blood and such. but then i remembered how badly sex hurt for me. could i be bleeding bc i wasn’t wet enough? i’m starting to freak myself out.