Better (at) sex

So my husband and I have a great sex life.. for the most part... Like just for him really he always cums. I do love sex (especially while I'm on my period) the thing is that he has never made me cum, and be doesn't know that. We've had unprotected sex for 2 years now, no babies yet not even a scare tbh. And to add to it, sometimes sex is painful like he's bruising my insides somehow. There was one specific time where it hurt so bad I got nauseous and felt like I was going to black out and then couldn't walk to well the next morning. I've never had an infection down there and my periods are normal-ish like sometimes I miss a month but usually I get it sometime in the month. Doctor's are VERY expensive where I am so I haven't gone and wouldn't consider unless there was an infection or something. ANYWAYS lol sometimes sex feels like nothing (he doesn't know that) and my husband is like.. large.. So it's weird that sometimes I don't feel much. It really feels best when I'm on my period though idk why. So I have all this stuff going on and no women in my life to ask sooooo any advice is much appreciated!