After her college sweetheart passed away from bone cancer in 2017, Caitlin Sebastian left her career in real estate to pursue medicine and is now in her third year of medical school. “Ryan was playing in a men’s league hockey game and hurt his shoulder. When he went to the doctor, things suddenly got very serious. He was diagnosed with osteosarcoma. They did a biopsy, and at that time, the prognosis was really good. Every three weeks, he’d get chemotherapy. It was about a year of treatment, and then they did surgery on his arm to remove the tumor and do a bone graft. Two months later, he had his first set of maintenance scans, and we immediately find out he's going to die because his cancer had spread. Seconds after finding out the news, we decided it was now or never to have a baby. We had thankfully banked some of his sperm before he started chemo, and I got pregnant with Charles. Five weeks before Charles was born, Ryan had emergency surgery for a hemothorax. A tumor grew throu...