When we think about being young, we picture a time of exploration and discovering who we are. What we don't picture? Cancer. But there's a worrying trend in the cancer world with  young adults getting cancer at higher rates, and scientists don't know why.

Kelly Spill was 28 years old when she was diagnosed with colorectal cancer. She was pregnant when she first noticed symptoms. Doctor after doctor told her not to worry. When she was finally diagnosed, her cancer was Stage 3.

This week on “Say More,” Kelly’s story of treatment and survival. Later a conversation with Dr. Andrea Cercek, an oncologist at Memorial Sloan Kettering in New York, who leads the first clinic in the world to specialize in young people with colorectal cancers.