Believe it or not, I'm in the exact reverse headspace from you. I'm trying to figure out if I ever want to have children or not -- and I'm looking for an emotional response within myself. If I evaluate it logically, it always works out in favor of childlessness. So I need some sort of desire, some innate wanting -- something that can't be satisfied with what I already have.
Still don't feel it. I've got 4 years to figure it out.