Melissa Hobley, CMO at OKCupid, describes the obstacles facing people who are undergoing in vitro fertilization. She is currently pregnant with her second child conceived using the technique. The process is stressful, time-consuming, painful and expensive, and it involves plenty of uncertainty. "It's one of those things that so few people talk about, for obvious reasons." She also weighs in on the best and worst couples, the allure of live TV and mixing politics and family.