Bleeding while being fingered???

My boyfriend was fingering me pretty hard and right when I was about to climax, I started bleeding!

He took his fingers out of me and there was a TON of blood! I went to the bathroom and it was pouring out of my vagina.

Mind you, I was supposed to get my period the day before but I took another birth control pill so I wouldn’t get my period when he came to visit me (we are long distance)

The next few days after this happened there has been no blood whatsoever, so I’m not sure if he scratched me very badly or if I got my period or something?

It didn’t hurt at all when he was fingering me and his nails are usually kept pretty short. I’m not a virgin so I’m just worried about what this could mean.

I’ve bleed a few times when he fingers me/ has sex but this time there was SO MUCH blood.

Someone help me!!!!! :(