marriage rough spot...long rambling post

I'm feeling really sad about the state of my relationship with my husband. Things have just been off for a while now. We have an almost 2 year old and I'm about 6 months pregnant so obviously that plays a role. I don't really know how to explain it, it's like pregnancy brain won't let me say the right words to explain to him how I'm feeling so I just don't even try. it's like things that used to be slightly annoying now really bother me, because we have kids to think about, I've never been a nagging wife, I just do the stuff myself but there are things I can't do while pregnant and in such a small house, I feel like I'm roadblocked to do the things I need to do until he does his (example would be. I can't get our toddler out of our bed until we can put together her new bed, but I can't do that until he moves this massive chair out of her room, the bed pieces are in my laundry area also so my laundry is a mess) uggg, it's just annoying help me please stuff, and I don't like asking. sometimes I feel like he actively makes Things harder . like, he works really early, I get he is tired, I tell him to go nap in bedroom, but he would rather fall asleep on the couch randomly so that I'm not only doing the normal caring for a toddler stuff, but also have to keep her off of him or he gets pissy. but then we haven't had sex in months, he doesn't even try, he changes the subject when I bring it up. We need a date night badly, but our only babysitter is my mom, who used to be my only friend is not really available even to talk to me (whole other long story), so I never have a break, never have anyone to talk to , and never get any time alone with my husband. Then last night I put our girl to bed, and come back in the living room to find him touching himself and he says , "your coming back in here" as he jumps up, I'm like oh I'm sorry for interrupting and left the room. I get people do it it's not that he was doing it it's that he was so tired he was falling asleep 30 minutes before, barely speaks to me, doesn't try to have sex with me even when I throw myself at him, but he can do that. I'm by no means faultless, I should try harder in certain ways I suppose. I guess after almost 10 years of marriage it's just one of those tough times. thanks for letting me ramble, I really have no-one but my toddler best friend to talk to and she totally wouldn't understand....lol.