Doesn't want to live together

So I'm 10 weeks from having my third son and my bf doesn't want to live with me. So this baby was not planned at all and my bf and I had only been together 7 months when I found out I was pregnant. I thought about abortion but couldn't bring myself to do it as it wasn't the babies fault this happened and so my bf and I had thought about getting a place together before I found out I was pregnant but he decided against it and now I'm 10 weeks away from my due date and he at first was saying we should get a place and now he's saying we shouldn't because we got to many issues (we fight sometimes but doesn't everyone?) And so now I'm stuck with my living with family because he doesn't want a place together and I can't afford 3 kids and all the bills that's why i had to leave my apartment because my rent got to high. But I have come up with a plan that when this baby is born I'm going to work my butt off to get me and my boys a place and my bf can do whatever he wants. I will make sure my kids have a place to live with or without his help just like I did before! I just can't believe he doesn't want to get a place together even though we're having a baby together now.

Just an FYI we've been together over a year now at this point not 7 months. We had been together only 7 months when I got pregnant and we don't argue all the time I said sometimes. Maybe once a month if that. Also he has a daughter from a previous relationship.

Update: So he broke up with me last night so he had clearly been questioning our relationship.