Am I being played?

Ok January 19 my baby’s dad married a dirty woman. 5 weeks later she filed for divorce. I never said anything during this period just watched FB and laughed. Now in May this year he contacts me out of the blue and things get steamy I was of the assumption they were in the process of divorcing. In July I get pregnant I said don’t you care we may have just made a baby and he said why would I I want four with you. Last week in bed he asked me if I’d been following his stories I lied and said no coz I knew where this was going. He showed me his life event married. Now this man got me to his in an emergency and told me I should move in with him so of course I’m going to think they’re done. It turns out she got out of jail in January they got married then she went back to jail again and she’s due out next month. The divorce wasn’t finalised because she went inside instead. My concern is I don’t know what she’s in for but she’s has a kid removed for drugs. He’s carrying on like he’s the boss of the baby and I don’t know if she’s a danger to my child or even if she knows about us. I don’t know if I should cut him out because of her and the way he’s behaving or give him a chance to step up when the baby’s here? Any thoughts all I know is I don’t trust him either now. I’m not afraid to fight to protect my child but I honestly thought they were done. Maybe they are but I’m not sure it’s a risk I want to take right now