Getting kinda nervous...

I'm going back to work in a few days after having my son in May. My husband is going to stay home with him, at the beginning of the month I tried backing off a little so it wouldn't be such a big change. My husband didn't go for it, he wants me to get in as much time with our son as possible before I go back. I'm the one feeding him all time, putting him down for every nap, calming him down when he gets fussy and everything else. I just know I'm going to come home to a cranky baby and grumpy husband because he doesn't want to learn how to calm him down or put him to sleep. Any advice?