I'm bleeding what!?

my boyfriend was fingering me hard and he has fingered me so many times before and we have sex. So I "finished" and right after I started bleeding like as if it were my heavy period but it was red and then it turned brown. It's been 2 hours and I'm still bleeding but lighter and it's just brown like it's old blood. I don't know why it's like that?? Any help??? And I get my period in a week