Re: changes-dh will be working, too
I went from SAHM for 7 years to part-time to my current 35 hours a week. The biggest hurdle I have encountered was that since my work hours gradually increased over a few years, I always kept the burden of the majority of the housework on me (my husband has always been great at helping, though) and being 100% responsible for all of the kids and all of their sports and activities. I kept it up for several months, but I was cranky and resented my husband without realizing it. When I faced that I really couldn't do it all and finally asked for help, things got better. It sounds like you are already anticipating have to step up at home more, so that's good. That was my biggest problem.
A real woman always has a clean house, an empty laundry basket, smells good, is well made-up, slim, healthy, eloquent, and perfectly well behaved...I suspect I am a man.