I think my fiancé is addicted to porn idk what to do..

I’m pregnant and we are spose to get married next year. I’m trying to be a Christian woman and get closer to god especially so I can keep the wedding going and be an example to my soon to be daughter but he never wants sex and doesn’t care to discuss this situation with me. I feel like he thinks watching porn is no problem. I ask him if he’s addicted but he says no. So he’s still doing it even though I cry about it Or he is just lying? Idk 🤷🏽‍♀️ I woke up at 4 in the morning cuz he was moaning and saying dirty stuff like he was having sex in a dream. That made me so mad because are u really watching so much porn that’s what you’re dreaming about cuz it’s all u think about… but won’t have sex w someone who is about to be your wife. I’m already embarrassed because I never wanted to be someone that had a baby by a man who wasn’t my husband. I also didn’t want kids for a couple more years and I kept telling him that. I wanted to be a real estate agent and I had just finished going to school and I know I still can be an agent but now I’m waiting to the baby is old enough to talk because I don’t trust other people watching her. I really feel like this relationship is over because I don’t feel wanted and he had left me for another women years ago and it’s bringing back old memories because when he was cheating our sex was exactly how it is now, I did choose to forgive him because we were both young and addicted to drugs & this happened years ago. I believe that people do change because so have I. I don’t feel like he’s cheating on me physically but he sure is through the phone. I really believe he got me pregnant on purpose because I was going to leave him but then I found out I was pregnant. Idk how I even got pregnant if we never even do anything cuz when we do it’s like a 2 minute thing. We had already been fighting about this before the baby… I was on google trying to find an address for where we were gonna eat & noticed weird fetish things pop up in the search browser. I was convinced he stopped watching it after I told him how it made me feel months ago but it’s literally been something he’s been watching everyday & now it’s causing our sex life to be dead where I have to beg & I’m completely mad. I thought he was working sooooo much that’s why we haven’t done anything so I was letting it slide but I will not let the porm watching slide. We were doing really good before I found out about the porn. I felt like the relationship was too good to be true & now here I am. It’s to the point where I want to take a trip to LA with my family and take a break but I’m scared because I’m pregnant & a housewife. It also stresses me out because he already left me before and it’s bringing back old insecurities, that’s what makes this situation so much worst to me . I’m young and attractive so it’s confusing. He moves when I try to touch him or just initiate so I stopped but now it’s causing way too many problems because how can you feel that uncomfortable if you watch other women everyday. I feel like I messed up my life by choosing a weak man. I literally was between him and someone else that was so great and me and the other guy still talk about what we could of had and I’m really thinking if I should just leave but what would my baby feel and go through without her father growing up with her. I also don’t want her to think it’s okay to give up. Because I know marriage will have problems I think I just can’t handle it anymore because we’ve just been through too much. I don’t want to live in misery feeling like I’m just there as a friend. Sorry if this post is all over the place but I’m very emotional right now and I’m typing away. Hope u guys get it though. What should I do?