Need a pick me up

Just struggling to feel wanted and loved. Not affection no intimacy. I have to be the one to jump up if our toddler needs or wants something or is going to potentially get hurt. I get told about my attitude all the time but he never tries to understand why I have an attitude or think maybe he is doing something to cause my attitude. I'm a stay at home mom to a very active toddler and also pregnant in the third trimester. I'm just so tired of feeling Like shit and unhappy all the time. We hardly ever have sex and if we do I initiate it. We might have sex once a week or every two weeks. At that point its guaranteed to be a "quicky" because its been so long so then its not even worth the effort. He works while I stay home and i appreciate him working to support our family but I feel like a nanny or something equivalent to that. I never get kissed or hugged or cuddled just because. The computer is where 80% of his time is spent. He is either sleeping or gaming. I mention that him being on the computer all the time bothers me but he never changes anything and makes comments like well I have been playing since before we got together. I mention wanting sex and he responses with well I was going to last night but you were out cold. I stayed up until almost midnight waiting for him to come to bed. He didn't say anything about sex but I guess he expects me to stay up all night every night because he may decide he wants sex at who knows what time during the night. I just don't understand the thought process there. I try to keep the house up but it is hard with a tornado(toddler) constantly destroying the house. I never get a break from our toddler and definitely no couples time. I mentioned for weeks wanting to go out for dinner for our anniversary just the two of us thinking he would get the hint to arrange for family to watch our toddler for a couple hours. We went to eat.. the three of us . If I keep things balled up I'll end up snapping