Sex still hurts

So I’ve been with my boyfriend for almost 2 years now and I lost my virginity to him about a year ago. We’ve been sexually active and sometimes sex still hurts even though im aroused and wet. It still feels too tight down there and sometimes he doesn’t go in as easily. Sex really only feels great when I’m ovulating and that’s also the time where his dick goes in easily. When it does hurt it hurts at the beginning and later the pain is still mildly there but doesn’t feel amazing... is there something wrong with me lol I don’t think it’s him because it does feel good only when I’m ovulating