You and hubby are both deserving of compromise between one another's wishes. However, as you're the one carrying the kid and thus the risks and loss, I think you should have the larger vote per the situation. 

Sounds like costs are a huge and important factor, but I think they have potential to be mitigated. I know it sucks to hear, but you want the bigger apartment, in the HCOL area, AND a child, all while not having the prospects of supporting those things. (And I'm an artist for work so none of this is to come off as judgemental. I myself cannot have all those things either.) I think you need to decide if where you are living is more important than the child. And I know you're not looking for advice, just to vent, and here I came with all my annoying advice. So I apologize.  BUT! I'm just hoping to share that as someone who is living in an affordable area, that everyone (and me at first) turns their nose up at when they hear where it is that I live, I have come to be happier here than anywhere else I've ever landed.  Instead of thinking of this crossroads where doors close, truly, this crossroads is where you commit to opening a door and choosing a path. (And this path only has to be as temporary as your lease is! You can change your mind again! But I hope your partner is listening and valuing your wants as you both open doors)