No idea on what to do

Ever since I agreed to convert to Catholicism my husband never wants anything to do with me sexually. Yes, we’re not suppose to be sleeping in the same bed etc but we’re pregnant with our second and my sex drive is through the roof. He now looks at me as a “baby making machine” and told me sex should be reserve to make babies only. I don’t think I can do this. There’s been a hand full of times that I can remember where he allowed me to pleasure him but now he hates for me to touch him. I’m absolutely sad because recently twice now I caught him cheating on me, not physically but verbally and we worked through it but now I feel like he can just pleasure himself while texting someone so to me I’m just pointless in the marriage. We been together for four years and I’m just starting to become broken over this. I haven’t gained any weight, im still attractive but it’s like he doesn’t find me attractive at all anymore. Not sure what to do anymore. I’m tired of feeling like I’m the blame.