Leaving bf while pregnant?

I’m 30 weeks pregnant and my bf and I got together one night and I ended up pregnant. I know it wasn’t responsible but were adults. We started dating right after I found out I was pregnant. Not just because of that but we honestly loved spending time together. It seemed to be working out great. He is a great guy, would do anything for me... but lately I have noticed he gets mad at me and starts arguments when he is drunk. I don’t mind he goes out here and there, but no matter what he will start some sort of fight.

I also noticed we’re turning into different people. He loves to go out and hang out and I like to stay in more, especially more that I’m pregnant. I am just a shy person and like my peace and quiet when he’s the complete opposite.... which starts fights.

But it’s really bothering me that whoever he drinks, he wants to argue and it gets to the point I start crying. My ex was the same way, and then he started to abuse me but punching, throwing me down....

I want to leave before it gets worse. But I know he cannot afford a place of his own, let alone a baby and child care. (We would split daycare) what would you do? Is it just pregnancy hormones making me this way?