Why rejecting birth control can be an empowering feminist choice

I'm not by nature an exhibitionist, but we all have our moments of temptation. Mine often come in elevators, when I'm momentarily cloistered in close quarters with my four young boys and some man. It's crowded, so he is literally backed in a corner. I see him glancing back and forth between the children and me, his thoughts as clear as a baby's bottle. Can they really all be hers? Holy cow. In my fantasy, I address him casually. "Hey, Mr. Staring Guy," I say. "Have you had sex four times in your...