How can men walk out on their pregnant wife…

Our plan was stay together long distance for the next 4 months bc he’s finishing a training program in his home state so I went back to my parents in the meantime. As soon as he moved back there he started being distant. It caused arguments bc I was asking why he’s being like this & wasn’t getting a real response. Finally he said he’s moving on. Doesn’t want to try and make it work with me even though he promised me different 3 weeks ago.. Currently 5 months pregnant now. Feeling so alone going through this pregnancy. My parents say leave him alone & see if he comes around once baby is born. Tbh I feel broken.. we are married.. our first child.

For moms who do this alone I give you all props bc I feel so depressed and I wish I had the strength to forget him & move on.