advice please

Lydia
So I had sex for the first time in a year the other day. I started bleeding a lot during and for 20 mins after ( I'm not on my period). The last guy I was with popped my cherry but I only bled Alittle after and have never bled this much. Could it be that he could of been bigger ? 
Update:
I tried having sex again. It's been a week since the last time we had sex. I started bleeding again. Not as much this time. It also hurt extremely bad going in. Which never happens. I think I should go to the doctors but I don't know how to tell my mom because she doesn't know I'm sexually active.