It's a boy! Their Royal Highnesses The Duke and Duchess of Sussex welcomed a baby boy, their first child, weighing 7 lbs 3 oz on Monday, May 6th at 5:26 am. After family members were notified, the first official public announcement came via the couple's Instagram account @sussexroyal. Shortly thereafter new dad Prince Harry spoke to a single reporter outside at Windsor Castle regarding the birth. Harry confirmed that the baby was overdue and he was present at the birth, and reported that mom…