Dear J.,
I'm so sorry you are going through all of this. Especially pregnant. It's shattering and the very last thing you need.
However, that said, if it has to be this way, you are better off finding out now. Apparently, he didn't care if you found out about what he's been up to and you have. So, it seems the path is pretty clear.
As for counseling, I would definitely go. At least just for yourself. You need to work through your feelings of betrayal and hurt and anger.....
Believe it or not, you are in a better position than most women by virtue of not being married, owning your home and his name not being on any of your assets.
What I would do, and this is just me, is go to court to have paternity of your children established. Just because you are the mother, you do not automatically have custody. Talk to an attorney, but I would ask for sole legal and physical custody of your oldest child and unborn child allowing him some type of visitation with the older one, perhaps at your house on Wednesday and Saturday afternoons. Something like that.
This will start the ball rolling for a child support order.
If I were you, I wouldn't worry about him going to another state. If that's what he wants to do, let him. He can only run from support obligations for so long. In the meantime, you can make it without him. If he is given any type of visitation and disappears....keep that documented.
I left my husband when my son was just a little baby and although we were married, etc, he was in the position to make sure I lost everything. It gave him pleasure to do so. Your partner can't kick you and the kids out of your own house. I'm not saying it will be easy, but you can definitely do it on your own.
The choices you make are yours, so you should do what you think is best, but I wouldn't want to stay with a man who feels trapped and apparently keeps a journal of his conquests. No way.
A good friend of mine put up with her boyfriend cheating. She didn't like it, but she was pregnant with yet another kid, was afraid to try to make it on her own, and I guess she thought he'd stop sooner or later.
He did. He went to the hospital the night the baby was born, with his new girlfriend, and told her he was leaving her.
You have to know that nothing you do or don't do will change him. You can't change the fact you have 2 kids, you can't change the fact that he feels trapped. You can "untrap" him though.
I'm going to keep you in my thoughts.
Remember to take good care of yourself. Make sure you eat as well as possible, get rest. You still are carrying a baby that needs you do those things.
Talk to someone about getting some counseling and what your legal options are in your state.
I wish you the very best.