My husband regrets our newborn...

Our planned son is only 7 weeks old and my husband isn't interested in him at all. He says he feels nothing for him and if anything he resents him for the change in his life. At the most he'll hold him for 5-10 minutes so I can do something. It's really starting to take a toll on me. He says he hopes when baby is older he'll start to like him but in the meantime I'm so stressed. Anyone else have this problem or advice?