My DS1 started daycare when I went back to work 3 days a week when he was 11 months. Personally I think it was really good for him. He was entertained all day doing paintings and role plays and reading and dancing... he had a great time. It also allowed him to get used to other kids and adults and has made it easier for me to leave him with someone so I can have a timeout every so often. Even mums with DHs need a break sometimes.

Don't listen to your XH! Babies/ toddlers can be full on and you definitely deserve a day off. You may find that you are a better mum on the other days as you have had some rest time.