Feeling like a single parent

My husband says he feels like our baby hates him because he can never get her to sleep or even calm down sometimes. She’s only 6 weeks tomorrow so I’m assuming she needs more time with him, but because he can’t get her to calm down, he doesn’t like watching her alone. And he doesn’t really try to help with her at all. Now today I got an IUD put in and I have excruciating pain in my leg (that my doctor says is normal supposedly). But I asked if there was any chance he could get off of work tomorrow and he says “I doubt it. What would you want me to take off for?” I told him already how bad the pain is... I’m literally using two heating pads currently and still crying. When I told him to help with her, he just didn’t say anything else. I’m not even sure what to do at this point.