super embarrassing fingering story?? help?

so my boyfriend and i were in the car together and we were getting a little frisky at it

foreplay was fine, nothing happened that was weird, then we began to have sex!

after sexing for a few minutes, he decided to finger me

he was getting a little rough with his fingers (it was hurting a little when he did it, but i didnt really think much about it.)

and when he pulled them out, his whole hand was covered in blood!

he said “babe you’re bleeding”

and i FREAKED out

i began crying cause i was so embarrassed!

i wasn’t on my period, i was just bleeding.

i dont really know what happened? did he knick me inside? can i get some answers i was really upset about it and i can’t get my mind off of it.