Talk to your fiancee about this. He might help ease your mind about all of it. My husband and I would LOVE to be able for one of us to stay home... Likely, if we could, it would be HIM staying home.
I do agree that unless you're making a significant amount of money, it's likely not worth it in the end. Daycare for our son is $180/wk for only 3 full days. If we were to put him in 5 days a week... $255/wk! That's a house payment including escrow!
Have you thought about doing something like selling Avon, Pure Romance, Mary Kay, etc? There are a ton of things you can schedule on your own and make a little side cash. I'd have to say that in my experience, Avon, Mary Kay, and Tupperware kind of sells itself. I know of a couple women that didn't need to make a ton of money, but ended up making a lot more than they thought by selling things like this. I did this when I was laid off. And because I didn't make much, my unemployment still was at max.
I've grossed $47,000 this year and that's before our profit sharing which we'll be getting in Dec... Last year, I grossed $69,900... We CAN'T afford for me to lose my job. But if you're making ends meet without working, you can make a small living with sales on your own terms!