Time is running out for my friend. While we are sitting at lunch she casually mentions she and her husband are thinking of starting a family. "We're taking a survey,"she says, half-joking. "Do you think I should have a baby?"

¡¡¡¡"It will change your life," I say, carefully keeping my tone neutral. "I know,"she says, "no more sleeping in on weekends, no more spontaneous holidays..."