Britain's Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George's Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are "thinking" about names. (Dominic Lipinski/Pool via AP)
Britain's Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George's Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are "thinking" about names. (Dominic Lipinski/Pool via AP)
Britain's Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George's Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are "thinking" about names. (Dominic Lipinski/Pool via AP)
Britain's Prince Harry and Meghan, Duchess of Sussex, arrive for a photocall with their newborn son, in St George's Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are "thinking" about names. (Dominic Lipinski/Pool via AP)
Britain's Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George's Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are "thinking" about names. (Dominic Lipinski/Pool via AP)
Britain's Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George's Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are "thinking" about names. (Dominic Lipinski/Pool via AP)
Britain's Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George's Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are "thinking" about names. (Dominic Lipinski/Pool via AP)
Britain's Prince Harry and Meghan, Duchess of Sussex, during a photocall with their newborn son, in St George's Hall at Windsor Castle, Windsor, south England, Wednesday May 8, 2019. Baby Sussex was born Monday at 5:26 a.m. (0426 GMT; 12:26 a.m. EDT) at an as-yet-undisclosed location. An overjoyed Harry said he and Meghan are "thinking" about names. (Dominic Lipinski/Pool via AP)