S.C.
Guilt is the default setting of motherhood. If you're working you feel guilty you're not home. If you're home you feel guilty for not bringing in more money. I don't know any mothers who DON'T feel guilty!
So when you're feeling guilty you need to evaluate whether it's "real" guilt because you're TRULY doing something wrong or if it's just the residual "mommy guilt" we all tote around because we can NOT do it ALL right, right now, for everyone. If it's just momy guilt you ignore it, if it's real guilt you make a change.
And sometimes on issues like stay home or work there IS no "right" decision, you just have to make a decision and then do they best you can to make it right!