he's no help

I can't stand my SO right now. We have a 7 week old baby and he is herdly helping... I have no help with the house, laundry, dinner, etc... you name it... can't even get him to get heavy shit out of my car without him having g attitude. Also, he never wants to carry the bAbies car seat when my 4 ft step daughter is over bc she is always asking him to pick her up. He won't make her walk, so he can carry the car seat upstairs while I carry other things. It's just annoying.