Candace Bushnell is CF, but Maggie Scarf has three daughters.
However, Scarf did write books about marriage and how couples' happiness during a marriage makes a U shape. Good at first, before kids...then happiness levels decrease when the kiddies come along...and finally goes back up when the brats leave. My guess is that's what she'll be touching on. CF marriages must make a different shape.
Either way, it's too bad I don't have Sirius or I would tune in.