Venting..

I’m a sahm have been for the past almost 2 years now, my husband works a pretty demanding job which entails a lot of driving, early mornings 430-5am and getting home late 5-8 pm. So I am at home alone with my child basically all day, I’ve recently just been feeling pretty alone and isolated given it’s also winter time here and there’s not much to do. I look forward to the weekends as it’s my husbands time off but mornings look the same for me and my son, my husband sleeps in until about 9-10 am (while my son wakes up around 7-730 on a good day, so I’m up at that time) and while I feel bad because he’s up early all week I also feel pretty crappy about it because for 7 days a week my mornings look the exact same and it’s tiring and depressing almost he says he wants more kids in the future but I think of it this way, I’m the one who takes care of my sons needs like 95% of the time, I don’t even think I could do more kids it’s been pretty mentally and emotionally tiring, my son had a lot of issues when he was born with not sleeping and I had to do Physical therapy with him for a few months, my postpartum experience with him was terrible I was pretty depressed, I had no support from anyone really, my husband helped best he could but went back to work 2 wks later and slept in the other room, I have family about 1 hr away and they never came around, also given that he was born early and has had a pretty weak immune system and gets sick so often and I’m the default parent so everything falls on me. So I don’t quite understand why he would want 3+ children if he doesn’t help out much with the one we currently have, it really makes no sense.. and maybe some can relate to this which sucks and i understand the role as a mother but when a child is made it’s not solely made by the mother, the father also partakes in the act, so it’s a bit frustrating at times when, cleaning the house, cooking, feeding every one, bathing, feeding the dog, naps, diaper changes, entertainment, laundry, dishes, and bedtime all falls on one person while the other just works, gets home showers, eats and rests and calls it a day. I hate to complain so I rarely bring things up because it always ends in an unresolved argument where he says that he works and he’s tired? Like okay so am I?? When do I get a breather, or maybe some help?