Please Help

I’m a naturally stressed out person and I stay depressed to. While I was pregnant yeah I had some good moments but I was constantly really stressed out and depressed the whole time. I cried myself to sleep just about every night. When I was in the hospital having my son the father was there for the birth then left me there by myself I was there for a total of 5 days, I cried the whole time I was there the nurses felt sorry for me and would watch my son for an hour or so, so that I could get a little bit of sleep, out of 5 days I probably got a max of 2-3 hours of sleep. Me and my son had a connection from the start, he had to be in breathing distance to me in order to sleep or when he was in the baby bed thing at the hospital I had to have my hand on him or where he could smell it or he would just cry and cry so I’d keep him in the bed with me and he’d sleep and I’d sit there balling my eyes out while my baby daddy would lie to me saying he’s on his way there to stay with me but he never came until I was legit being discharged, he only came so he could sign the papers claiming him as the father to our son. The connection me and my son had isn’t the same anymore I feel distant from him.... he’s 2 months old now and I’ve cried pretty much every day, he can sense something is wrong with me and he wants to be around me but when I’m in my mood all he wants is to be held but all does is cry. He knows something is wrong and it’s breaking or connection. I love my son to death more than anyone could imagine but I keep getting in that mood and I don’t want to deal with him cuz I’m even more easily irritated and I’m at the point I’m scared I might get to rough with him without realizing it.

Is this postpartum depression......