Bugger, Oggy just said what I was thinking, although I've not actually been a SAHM (apart from on Mat).
Thing is, we all seem to be comparing our experiences to some mythical time when women stayed at home with tehir children and played and nurtured them, and the big strong men went out to work.
But in reality (at least working class reality), it was never liked that. One of my grandmothers was a SAHm, but she was too busy washign by hand, mangling, growing food, killing chickens etc, etc to do 'mummy' stuff.
My other raised 6 kids, but wohm for most of teh time. HEr mil looked after the older ones, then the older ones looked after the younger ones.
SO my point is, we need to stop feeling guilty for something that never was.