Sacrifice vs compromise

Baby is 5 months old and while my husband is great in so many ways, lately I’ve felt resentful and haven’t known why. Today after an argument about if he was coming on a walk so baby naps in the pram, I figured it out. Since we got pregnant I’ve had to make so many sacrifices- food, sleep, my body etc. I’ve been happy to make them as baby is worth it. But daddy doesn’t need to sacrifice anything. He can make compromises as mummy picks up the slack. Anyone else feel the same?

EDIT- I tried to explain this to my husband just then, and got back from him that he feels like he’s made sacrifices. When pressed on what, he couldn’t name a single one. All I needed from him was to acknowledge that it’s hard for me and all I got back was it’s hard for him too 🤦🏼‍♀️