It took me weeks to come to terms with the fact that there were no easy answers. I couldn't change the past or the diagnosis, so I focused on educating myself and becoming Tinslee's biggest advocate. We underwent all the necessary tests, scans, and procedures, and spent a year going in for lab work and check-ups.

“If I had waited another six months, my story wouldn’t be the same.” Katherine was born into a world shaped by loss. Her older sister, Gracie, was diagnosed with Fanconi anemia (FA) shortly after the family moved to the United...