Suggestions... EDITED TO ADD

I posted in another group as well but I’m desperate for suggestions.

My boyfriend and I have been together almost 3 years. We love each other and have been talking about getting married. We do have a baby together. He does treat me good. The only thing is that our sex life SUCKS!! He doesn’t last long at all. Maybe a minute at the most. I’ve talked to him about it, we’ve tried more foreplay, oral and everything, but it doesn’t work. He doesn’t have a problem with erection or size. Last night he tried his best, but it still didn’t last. We talked about it again last night and he asked me to research over the counter medicine to help him last longer. I told him I would try but he may have to see a doctor. He knows I get aggravated because I never orgasm, EVER and I know it’s making him feel like he isn’t good. He’s good at what he does, it just doesn’t last long enough for me to orgasm. I tried doing a little research but I don’t even know where to start. Everything I researched comes up as helping getting an erection or making him bigger. We don’t need either one of those. Just to help him last longer. Any suggestions on over the counter medicines he can take?

Edited to add: we have tried second rounds and even third rounds. Nothing!! I honestly think he just needs to go to the doctor. I told him that last night when we were talking about it. He didn’t say anything after that. I really think he’s embarrassed (most men would be).