Rachel and Roger head to a fertility specialist and take the first step towards expanding their family. Roger, eager to have children is ready to get started while Rachel is still hesitant about timing. As Rachel's biological clock continues to tick, the couple must get down to business and decide if they are truly ready to start their family. Meanwhile, Brad is overwhelmed by work and questions his ultimate fear, is he turning into Taylor? Find out this Tuesday 9/21 @ 10/9c on The Rachel Zoe Project.