That's a very sad story, particularly since you're about to give birth. If I were him I would've waited till at least the baby was born.

I don't know what to tell you, but it sounds like he is depressed and confused. I don't think you should try and get him back or anything, because it sounds like he made some clear decisions about ending his relationship with you.

I don't know what to make of him adding those women in facebook. Maybe the responsibility of being an adult has become too much for him and he wants to be a free single man again. That's what it sounds like to me, anyway.