Sex hurts

I've noticed that whenever he goes fast, I can't take it for too long cause my insides begin to burn. I had sex today after more than a year and the same thing happened. Infact I even felt this pressure on the end of my vaginal hole, like it was too tight and my skin is being stretched out too much. Its been hours now and that area still burns if I touch. I've tried foreplay and was very much turned on so I really don't understand. Can someone help please?