I need support

I have never felt less attractive than I do right now. My husband and I are trying for a baby but he just doesn’t seem to want to have sex. When ever I get him hard and I get on top of him he gets soft. He says that he wants a baby but he just doesn’t seem to be happy about it. We started painting the nursery and he kept saying that it could have waited until later. Yet he didn’t say anything when we bought the paint. He never tries to have sex with me. He never tries to just fool around. He is always either at work,playing video games,or he is sleeping. I don’t know what to do.