What could it be??

So I’ve masterbated before and everything was fine. Today my boyfriend made me orgasm 3 times (first time orgasming with a partner) and he did it with the satisfier from Adam and eve. We had anal sex after that so no penetration whatsoever. There is blood in my discharge. I am also ovulating around this time. I’ve never had blood from orgasming. Could anyone tell me what this could possibly be from?