Even before Nora Chesnut was born, her parents knew there was something wrong. Emily Chesnut was carrying twins, and at her 20-week ultrasound, doctors discovered one twin had a heart defect. The Chesnuts learned to deal with that. It was fixable. But at birth, they learned something else: Nora, the twin who had the heart defect, also had Down syndrome. Katie, the other twin, had no complications. "Getting the diagnosis of a child with Down syndrome is life-changing," Emily Chesnut says. In some ways, it has been a blessing. It has changed her perspective on life, parenthood and what it means to be a family.