Don't really know where to post this..

So I'm 5 months pregnant and I broke up with the father around 2 or 3 months being pregnant. I ended it because he was abusive and it wasn't constantly at first just little things but it got worse and constant after telling him I was pregnant. I tried giving him another chance to get his shit together for the kids(I have a child from a previous relationship and she knows him as "daddy") but sadly he did not get his stuff together he is still aggressive only went to 1 class and started abusing drugs and just constantly lying. I just need advice and what I should do for when this baby comes because I just know he'll pop up acting all innocent.