Ive bled during sex too. Didn't know it at the time until my boyfriend informed me of it. Totally embarassing. I think its just because of little tears in your vagina, from him being a little too rough, either with his penis.. Or could even be from him scratching you with his nails when hes fingering you. Then the blood gets mixed in with your discharge (and other juices) and it looks like your bleeding a heck of a lot more than you actually are. As long as it doesn't last more than a day after you had sex I wouldn't worry too much about it.

I'd make an appointment with a gyno - it's good to have one to go to anyway, once you start having sex, for questions like these

i'm going to mine for about the third time in a few days because I have a question


it can definitely take a while for you to adjust and be able to comfortably stretch to accomodate him down there, but I don't know about the bleeding

i've only bled a few times and that was in the beginning, and it was only a tiny bit