I NEED ANSWERS

so my boyfriend and I were messing around and he like fingering me. Like really hard, I mean I was enjoying it but like when he took his hand out of my pussy it was covered in blood. It scared the shit out of me, and when I got up there was blood all over the couch, like a lot of blood. We’ve had sex before and he’s fingered me before but I’ve never bled this much. I just want to know what’s happening.