All the support in the world... now none

Did anyone else have a really supportive husband and then all of sudden when you need him most he turns into a nasty selfish person? The first 12 weeks he was great, super supportive if I needed something he’d get it. Then all of a sudden it turned completely self centered and I was told by my midwife that I need to stay off my feet as much as possible this week because of a change in my pregnancy. Now he criticizes me left and right. Pregnancy has not be easy in me and I just don’t know what else to do.