Well, I'm very sorry to hear this. He sounds like he is scum and found scum to be with. Losers, both of them.
When you say you want to move to the other side of the earth . . . can you move somewhere else at all?? because this is what I fear . . . they are going to make things very difficult for you. They might want partial custody.
Ordinarily I think that women need to do whatever they can to encourage a relationship with the dad and being cordial with the new girlfriend is part of that for the sake of the child. But this new girlfriend is way too aggressive.
then again, she really could be all talk. When he starts to have to give you money on a regular basis taking it away from their home . . . she won't like that. So if you cant get away from them and they seek partial custody or visitation, then you absolutely hit him with child support. I wouldn't ask for child support unless he makes a move first because otherwise, he will then go for visitation.
If he stays with this girlfriend, then she will be a step mother. That's hard. If that happens and you are forced to deal with one another, never fight with her. Let her be the bad guy. You just rise above and try to find other outlets for the frustration (kickboxing class? :>))
anyway, sounds very frustrating and the last thing you need right now is this woman driving you bonkers. Hang in there.
I've been told not to. It's way too stressful. I'm high risk on top of it :/
I wouldn't put his name on the birth certificate...that sounds bad, but it seems like he doesn't care..