bleeding after sex

so Friday night me and my boyfriend had sex 5 times and we go long. when I woke up I had a tiny bit of spotting and didn't think much abt it cuz of all we did. but I kept kinda burning like my ovaries were burning and we did some shopping all day then got to hotel and I was bleeding more. I told him and he said it was probably my body saying I needed a break so we did other stuff and went to bed. when we woke up we were gonna hop in the shower and when we turned on the lights it was like a murder seen on the bed! I soaked a super plus tampon in a few hours that night! also my period isn't due for 10 days. he was so sweet and carried me to the shower and he cleaned it all up. he's kinda concerned about the amount of blood. if the sex made me start early this sure doesn't feel like a period. no cramping and I normally have such bad cramping during the whole thing. but I'm just bleeding, nothing else.also, we didn't use any protection we just pulled out before. but he had a lot of precum and I started to get worried about pregnancy but if I'm bleeding this much is that even a possibility still???? also we did it 5 times in a row with barely a break in between... someone just please give me some info if possible ! I'll be seeikng my doc soon possibly. thanks :)