Am I a petty BM ? 💔

So me and my bd were dating for a while before and only shortly into my pregnancy. We were also homeless living in his car. And it broke my heart how he had the potential to get us out the situation but didn’t ( Buying 🌲with the little money we had, not working enough hours / settling for less ) i got pregnant in March, found out in May. It was hot and I had a few incidents where I had a heat stroke, and almost passed out. I was pregnant, hot, hungry and couldn’t take it no more … So I left and went to my parents house. Okay so now we’re in June / July, we settled our argument but still wasn’t together. STILL having sex and doing bf / gf things. At this time he said to me that he “needed time” before entering a relationship with me and was acting like I was the only one he was dealing with. Gave me high hopes. One day, while living with my parents, I made the DUMBEST decision to sneak him in because I felt bad about him being in the car, hungry and hot. I would make him something to eat and made sure he got a shower in. I had no idea what was going on behind my back. We got caught and my parents kicked me out. My sister let me stay at her apartment which had no power, no hot water - everything was out because she was behind on the bills ( my sis was living with my parents) I was there ALONE, pregnant and scared because I have never been on my own before I had no idea what I was going to do. My family doesn’t like my bd because he treats me bad so she didn’t want him at the apt. But hey, that wasn’t a problem for him … little did I know he was having sex, living with and being intimate with his 1st bm. I found out through her and seen the text between them, told him I knew. That’s when he finally told me himself. For about 2 months I was there in that apt … So heartbroken and in disbelief. August came around and he told me he left her for good. What did my dummy self do ? I took him back. Later found out she was PREGNANT too by him. She’s due in May with TWINS. I still stayed 😔 We were hotel hopping after that and found a roomate who lived in a town home. That didn’t work out so we found a hotel for cheap and stayed there. The arguing started back up again. He kicked me out last week and invited his 1st bm to stay with him. Apparently she lost her house due to the hurricane here in SC and was sleeping in her car with their son. But my thing is why didn’t he just take the son in and let her sleep outside ? He said it was about the kid. But in my mind, if it’s about the kid - make it ONLY about the kid. I think there’s love still there for his 1st bm. He hasn’t check up on me and our baby’s appointments even the ones when we was together and he couldn’t make it cause of work. He hasn’t ONCE bought a single thing for our baby yet and I’m having my scheduled C Section this upcoming Friday. He has left me pregnant and hungry, homeless not checking on our baby that’s inside of me. He has caused me so much heartbreak and stress. I’m not saying I’m gonna keep the baby from him, that’s if he wants anything to do with our babygirl … but I just don’t want him at the hospital when I give birth. I’m already very stressed and want a peaceful delivery. Does that make me a petty bm ? Or should I let all of that go and let him come. I’m open minded, so let me know. I’m trying to do the right thing. Btw - Someone took me in, in their apartment until I can get back up on my feet. So me and babygirl are safe and not out on the streets.