New stay at home mom blues

I love my man, we have had our problems we have been together for 4 years so its expected..

I have always been the bread winner always had a good job and made good money, but I got fired while on maternity leave 3 months ago and it was then my bf told me it's okay to take a break to spend time with our son..

Well he works at a greenhouse factory and works 3rd shift. So when he gets home I usually go downstairs with the baby so he can sleep. Then he wakes up showers I pack his lunch and hes back to work.

But lately I've been feeling so alone and upset. Like he doesn't help out with the baby hardly ever. If the house isn't clean enough he bitches about it, and on weekends he leave and goes to see his other kids or drinks with friends..

I dont want him to feel like hes gotta stay home but am I being a big baby?

Like his thinking is since I dont work I should never be tired, always clean, and have dinner ready like the 50s or something

I get it but at the same time taking care of a baby is a lot of fucking work ugh idk .

I just feel really sad and I'm like so is PPD? Or are my feelings normal idk what I'm doing anymore