Pain with sex

Alexis • Young girl trying to make it through life
Is there anyone who can help me? I love to have sex with my boyfriend and he knows how to get me super excited, but when it comes down to it, it will hurt sooo bad. And he will be slow and easy with me. And I feel so bad I try and take it for him but he don't allow that and won't continue when I'm hurting. Should I go see a doctor?