This is my life...

So I'm married (for now) to a complete loser. I got married (for the second time) to a great guy 4 and a half years ago. We had a beautiful baby boy who is 4 now and got pregnant in February with our second boy. In June of this year right before our 4 year wedding anniversary I started to notice something strange in my husband. Then at the end of June I confronted him and found out that he had been sleeping with some hag from his work. I am six months pregnant at this time. I left and flew to Arizona from Oregon, to be around people that I loved and love me and waited to hear from him to tell me he wanted to work things out and to come back. It took him two weeks to decide. In my opinion, you should know right away. So, I flew back and tried my best to change in the ways that he said he wanted me to. To try not to go crazy knowing that he was going right back to work to work with her. He never even tried to call me from work when I asked, to do little things to try and gain back my trust. We didn't even try counseling before he said that he didn't want to try anymore, that he would be forcing it and that I irratated him too much. So I'm here in Arizona and trying my best to get through with no money and schooling with a 4 year old and a newborn. If it weren't for my parents I don't know where I'd be. Granted there is always a LOT of drama being back at my parents but I'm dealing. Things get REALLY overwhelming at times when my 4 year old acts up or starts going in his underwear again, but what doesn't kill me will make stronger right?