pain during sex? help!

I’ve been having sex with my 3 year boyfriend for 2 years now, however every single time it still hurts at first and I bleed a little from the stretching. It doesn’t matter how lubricated, how much foreplay, or how comfortable I am. Even when it stops hurting I find no pleasure out of it. I don’t know if there is something wrong with me but we’ve tried plenty of things and nothing feels pleasurable through penetration.

Any advice would help, I feel so frustrated at this point:/