Cervix and Bleeding PLEASE HELP

So I’ve had sex before and sometimes the guy wouldn’t get it in the right spot so I would have to tell him and carry on doing our thing once he found it but as he was going insanely deep I felt like this pain/pressure and was just wondering if that meant he was hitting my cervix? But it felt good at the same time. Also as he was like going at it his “thing” went out and like slipped down and it really hurt and after we were done I noticed blood on the sheets. Then after a little bit I noticed blood on my underwear even though I’m nowhere near my period so is that normal since it slipped down with some force on accident or should I be concerned?