How did I end up with two jobs?

I decided during the end of maternity leave that I couldn't go back to work after having my second child. It was a huge decision for me as I have been working for this company for 9 years. It meant letting go of my other self and it was scary. But I did it - well kind of. I offered to work three days a week from home until they found a replacement. That was several months ago now. I have both kids two days and just the baby on the days I am working. I am just waiting and hoping they will find a replacement soon so I can focus on being home with the kids and finally kicking into gear my own business. Right now I am wearing too many hats and they are getting heavy.