Watching Prince Harry and Meghan marvel at their newborn Archie reminds me of the moment I met our newborn, William, for the first time. My role in this world changed, as I became responsible for the life of another human being. I remember riding home from the hospital with our newborn in the car, thinking how much the world had changed from the moment I walked into the hospital. For the first time in my 28 years of life, the world seemed to be such a dangerous place: reckless drivers, deadly germs everywhere, soft toys that could suffocate. Being a new parent is terrifying, exhausting and exhilarating - all at the same time.