I’m engaged and pregnant

Hello everyone! My name is Val. I’m engaged and pregnant with a first baby. To make it short, I don’t know if I want to be with the partner. I’m in another country after we got conceived so I can tell my parents in person and could spend time w them for a while during morning sickness. I coincidentally met him last year again in Mexico (we met in 2019 for the first time. Hung out just once then.) and we started hanging out everyday while we were both on vacations separately. During the week we were hanging, he said he and his gf just broke up. Then that’s when he started to make a move on me even though he was like “I feel bad for her because we were splitting already but I made her feel sad. She knew we were hanging out because she found your instagram.” I was like... ok. That’s the creepy side of SNS. But I wasnt serious about him so we were messing around and I left him to go back to US. That’s when he started calling and texting me constantly saying “I miss you and want to see you.” Then he bought a ticket for me to go back to Mexico so we could hang together again. I was pregnant this 2nd time in Mexico. I found out during the first ultrasound. We spent a week together. I came home, he then came to LA where I was so we can spend a week together again w his friends. Then I went to where he lives and that’s when we found out we were pregnant. I had an abortion once so I wasnt going to abort the baby again, but I gave him an out, saying he doesnt have to marry me or be my partner because we werent and I dont want to marry someone just for the baby. Though he proposed to me and said he wants to be a husband and dad. He did ask me 3 times if it was really his baby because we did have a week in between mexico and LA, and he was always anxious to see if I was w anyone else which I wanst. But when we found out we were pregnant, at the first ultrasound, and the 2nd ultrasound, he asked me if it was his. After promising me that he wont ask again at the 1st ultrasound. I was furious because I’ve been having a very heavy morning sickness and it’s hard to cope w it. And he asked me AGAIN. Of course we had a huge fight. He said “it was a fair question to ask.” nonchalantly. Then he has a studio apartment where he doesnt wanna move for us(me and the baby) because it’s comfy for him. He said “everyone does it. We can make it work!” I’m in shock to know that he doesnt see how serious having a new family and the baby is. I said please look for something bigger. At least one bedroom. He said we will figure it out later. I dont have later. I’m going to get bigger and bigger and once the baby arrives we dont have time to look or move. I’m just stunned. I have so much more to say but this is the major ones I’m concerned about. He’s 51. I’m 34. He’s never been married or had a kid before. Me neither. But it’s not about him anymore and All I do is worry. I dont think he’s the right man to be with...