I tried to post this on the old thread and then I was distracted by rl for a while, so it's probably out of date and no longer relevant, but I'll post it anyway, just in case.
The shit-faced bastard, I am incensed on your behalf.
I suspect he's fishing when he wanted to know why you weren't divorcing him. Trying to find out what stage you're at, have you seen a solicitor? Is a letter going to land on his desk any minute? Are you going to cite adultery or unreasonable behaviour or what? Etc etc etc. he wants information because he doesn't know what's going on and you are not being nice little wifey doing what he tells you to do.
In other words, the whole thing is cascading out of his control, he doesn't like it and he expects you to tell him. You haven't, so he went on a poor me fishing trip. You didn't cooperate with that either. Excellent. He's really freaked now. He's pushed a bit harder and told you of the pregnancy - no idea if that's true, but he won't have told you because he wants to be honest with you, he will have had an ulterior motive.
Brilliant news re the solicitor, too. Don't tell the ChunkyWanker anything he doesn't already know, (so we can all have a laugh at his wriggling; I am so mean) but really because you do need to keep your cards close to your chest with an arch-manipulator like this.
You are an extraordinary human being. You will get through this, and you will be happy. That's a promise.