fingering self

okay... so I have a really embarrassing and stupid topic to add but I NEED HELP! so I'm a virgin and lately I've been trying to finger myself for the first time and today I went a little further than normal and i started bleeding, after reading into it says it could've been my cervix (also I didn't feel any pleasure mostly pain) and I'm scared it might've been that? it says it could be infectious and I'm scared about that. I just got off my period but it said that extra blood should've been brown and mine was bright red?? help pls!!!