Bleeding during non-rough sex???

Help! My boyfriend and I had sex the other day and he wanted to use my toys. He started with a normal bullet vibrator and then moved to my rabbit. We were going at it with that for a bit and he was fingering me and stuff too and then started to have sex. It wasn’t super rough or anything, about as rough as it usually is. It didn’t hurt and I was plenty wet but then when we got done and turned the lights on, my vibrator, my sheets, and my bfs fingers were COVERED in blood. I don’t get a period because of my birth control so I know it wasn’t that. I’ve bled during sex before but not nearly as much as I did then. Has anyone else had this happen? I’m not too concerned about it but just don’t know what could’ve caused it. I should note that I was drinking so I don’t know if that could’ve caused more bleeding than usual since alcohol things the blood?