That is great, Jem. My husband and I are considering starting a family soon. I have been debating between just taking a break from work or self employment. It is good to hear that you have been successful in working from home with your kids.
Don't get me wrong, if I could afford it I'd have certainly taken time off work (so if you can afford to do so, do it!) but I know I'd have got bored quickly if I'd just completely given up work.