Bleeding after sex??? (Punishment for cheating?),

Hey guys, I'm back with another crazy ass story. Sooooo, actually not too long ago I was feeling a little lonely so I called up another guy other than my boyfriend to come over to my house. I'm not even gonna lie, something told me to not have sex with this guy at all. Mind you guys, I have already had sex in my lifetime maybe around 6-7 times already. So me and this guy we get to freakin and what not. Lol yeah I'm real slang with my sex stories but yes, this dude is drilling the hell out of me and it hurt so bad but it was pleasurable at the same time if you know what I mean. So yeah we had sex for a good 30 minutes In total. And I'm just getting back inside and obviously after sex it's normal to stick your finger up your vagina. So yeah I stuck one finger in and I have this mixture of my lubricant (saliva like Subtance you get in your vagina when you're horny) so yeah it's a mixture of that and blood. Yeah that's right, I've never ever in my life bled after sex until this very night and I know it's not my period because my period came and left almost a week ago. Anyway I need help really badly you guys. Why was there blood after this incident? Is this my punishment for having sex with someone other than my boyfriend??