OW is PG

[Livin4ME]

I don't remember if anyone remembers me, I used to post a while back. Brief summary. H left almost a year ago. We've been married for 7 years. 2 small children. He filed at my urging 5 months ago. Divorce will be final next week. He flip flopped most of that time between me and OW that he met after initial seperation. Each time he came home, it was at my urging. And he would make it where she would tell him to leave. 3 weeks ago, he started talking about reconciling. We started to become initimate again.
Last weekend, OW informed him she was late. Monday, she took a test, it was negative. Yesterday, after he told her he was coming back to me, she informed him she was PG. Personally, I believe it was not an oops on her part. That's my gut telling me that because of things that have happened in the past. She is keeping the baby and has insisted that she will be keeping it from him, he will not be allowed in the child's life.
This is where I'm stuck. I have refound my faith thru this whole ordeal. I firmly believe that God has a perfect plan for my life. But for obvious reason, I'm having a hard time accepting that this is His plan for me. H wants to dismiss the divorce. He has moved all his stuff back into our house. He has done this all on his own, not at my urging. When I asked him if he left or she kicked him out, he told me what he told her. The fighting, the money problems, which were all issues with us and why he left me. It was several hours after he told her this stuff that she informed him she was PG.
I don't want the divorce. I am happy my H has decided to come home. But do I do that with the OW now being PG? How am I supposed to live with this? I know there have been many people out there that have done this. I don't know any personally, so I can't speak to them and hear what they have to say. I believe all things are possible thru Christ. I know that He will carry me thru this. I'm very confused at the moment. And I have no one to talk to about it because H doesn't want anyone to know.