Fiance has left me and my depression is worse

I've basically been ditched and left to bring up a baby on my own, and now I feel sick at the thought of having the baby. I'm worried I'm going to resent it, I find no joy at the moment when he moves, and my ex has decided to avoid any responsibility he has. Including emotional support and financial.

I just want to sleep forever and not wake up. I'm not hungry. I'm struggling with work. And people keep telling me that I'll be fine and that I won't be alone. Really? They gonna push the baby out? They gonna do night feeds? They going to help with food shopping? Letting me shower and sleep?

Just don't know what to do. Any willpower I have gets taken away by my anxiety.