Depending on how old your other children are there is a different way to look at it too. When my son was born I was doing daycare and my others were 18m and 3 so home all day with me. I went back to work after a week but only with those age 2 and up so had 3 of my 5. I had to care for my own kids anyways and the having their "friends" to play with actually made the day go smoother because I could sit and watch them have freeplay plus there was enough action going on that I didn't fall asleep which I might have done if my own kids had been parked in front of the tv or something. If you have to play with them you might as well get paid for it. With my fourth my girls were in school and my son was half day junior kindergarten. I also had 4 others that were also in school afternoons and one sibling that was 14 months old. We struggled through the mornings, and then I paid a high school student to come and help out when the gang got home from school and that gave me a chance to rest a bit and then I got supper ready, fed myself and then as soon as hubby got home went for a nap while he fed the kids. Paying the sitter for two hours was more than worth it.
Another option is to do just before/after school for the year so you have the bulk of the day to yourself and can nap when the baby does. But again this only works if your own kids aren't in the home. If you can find someone to help out for the first two months it gets a lot easier from there on.