Rancic, the longtime host of various E! Entertainment shows and recently the co-host of the Style Network reality series "Giuliana and Bill," went on NBC's "Today" this morning to talk with Ann Curry about the discovery of her breast cancer. The cancer was discovered during her attempt to become pregnant via in-vitro fertilization, an effort that has been documented in the reality show about her and husband Bill Rancic. She tells a pretty chilling story: after many consultations and attempts to get pregnant, only one doctor finally insisted on a mammogram even though she is just 36. That test detected the cancer.