I feel like im losing my mind..

So with my husband's job he's never home. He leaves for work late morning and doesnt come home until midnight. I feel so alone now. I know my hormones are whacky and im probably overthinking but because of our past and him cheating, I don't feel like I can trust him. I see him maybe 3-4 hours a day. By the time he gets home, im in bed. I honestly don't even want to be around him right now.. all I do is cry, I just feel so alone. What's the point of being with someone you NEVER see?! I know he's working to provide, I get that.. our lives have changed so much... Im so exhausted all the time chasing our 1.5 yo & 3yo... We also have a 6yo, 15yo and 19yo. Im mentally drained.. im high risk pregnancy and get no help. He leaves for work 1.5 hours before his shift even starts.. It's only a 40 minute drive. It's like he can't be bothered all of a sudden... My depression is kicking back in, my anxiety is getting worse. Im starting to resent him for never being here and leaving when he doesn't have to. It's getting to the point I'd rather be a single mom than be with someone who can't be around for us. Am I over thinking this or is there truth to my madness??

Any insights would be great...