Can anyone give me some advice on my pregnant ex gf?

It sounds like she's trying to grow up and move on. Successful relationships are not so drama-filled and painful. If you really care about her and the child, you should get a job, start sending her money, and find a way to be an emotionally independent person. If it is meant to be, it will be with time, but I wouldn't push the issue with her anymore. Good luck.