A lot of life's inevitability is hazy; it'll happen some time, but you're not sure when. But with pregnancy, it's on an invariable schedule: forty weeks. Producer Wendy Dorr is currently at week thirty-six. She is experiencing an essential contradiction of pregnancy, which is the thing she is most looking forward to is also the thing that scares her. David Rakoff accompanies her to her Lamaze class to find out how you prepare for an inevitability that's on a fixed timetable. (5 minutes)