Depressed at 25 weeks...

Im just a complete mess...lost my home, babys dad left me, having to start over, AGAIN! I could be ok if it wasn't for the fact that my babys father just sort of ghosted me. He has severe depression but wont get help, no excuses for telling me it is just too much and hasn't talked to me since though. It's been a week and I'm devastated. I KNOW this is not ok, but I also know this is part of his behavior. What do I do for the long run? Wait it out and see if this really is him just freaking out for a bit. Or should I just cut ties completely....we've been friends for 9 yrs, dating for about 8 months...he hasn't had a bad moment like this since we started dating, but he IS like this. But with a baby involved, what should I do? This isn't fair, my baby is supposed to make me happy, I'm glad we got pregnant. But with everything else, there have been a couple times I wish things could just go back to me and my two oldest and just keep men out of the equation...I feel like a horrible mom to be for even thinking that, but it is how I've been feeling.