Resenting my husband

I love my kids and my husband, don’t get me wrong. I have a 3yo (almost 4) and a 7 week old. I am going back to work this next week and take care of the majority of the home tasks. In general I cope pretty well with everything. But I have started to become jealous and resentful of my husband because I am the default parent. I miss being selfish and being able to sleep a full night, spend some time for myself, and do what I want to do without having to cater to my kids and my husband. My husband helps where he can, but he works nights and has to balance his own sleep schedule. Does anyone have any advice on how to balance?