My dh has been the SAHP at our house for over 5 years now, since my dd was 6 weeks old.
It's a wonderful life, I wouldn't have it any other way!
Feel free to PM me if you have specific questions or issues. I breastfed my first dd for 14 months while working full-time, pumping during the day and bf on demand nights and weekends.
With my second, I was able to continue breastfeeding well beyond 2 years old, doing the same thing. It really can be done.
What kind of pump are you using? When do you pump? One suggestion if you have an electric pump (if you're going to back to work full-time I assume you do), is that during the first morning feeding, go ahead and pump one side while your babe nurses. Then switch and pump the other side while she nurses on the second side (assuming she nurses both sides per session). I was able to build up a large freezer stash by simply doing that every morning. The morning supply was always abundant enough for pumping and nursing (go, booobies!
I hope your experience will be as good as mine has been. My girls are so attached to their dad, and to me as well of course, but it is truly heart-warming and a joy to come home to every day.