Exhausted

I'm a mom wth 3 boys under 2. I had twins 5 months ago. I want NOTHING to do with sex. I hate the way I look and feel in my own skin. I am beyond exhausted and just want to sleep. And my sex drive is 0. I should mention, I work outside of the home full time. My husband does not do any of the house chores. And he is wanting to have sex and I am so beyond tired I cant. I have tried talking to him about helping me with the house chores and even helping more with the babies in the middle of the night. Nothing has changed. He won't do counseling. I don't know what else to do. At this point if we have sex I just want it to hurry up and be done with so I can go to sleep. Not sure if there is anything I can do? Or if I just needed a place to vent.