I certainly don't know how you women do it! When I had my daughter (I didn't start my daycare until she was 8 months old) I was so sore. I was so sleep deprived and I often just sat on the couch and cried from being so overwhelmed and that is just with 1 baby (my daughter was colicky). We cannot afford to have me not work and therefore have made the choice to not have any more children (even though I am not sure if I can have any more even if I wanted to).
My hats off to all you women!!