Prince William and Kate Middleton expecting their first child

Kate Middleton is officially pregnant and less than 12 weeks along, her royal husband, Prince William, has spent some quality time at the hospital where she is being kept. Middleton was brought to King Edward VII Hospital after experiencing hyperemesis gravidarum, a form of morning sickness, and it was only then that the Royal Family revealed that the Duchess of Cambridge is expecting.

BBC reports that William spent Monday with Middleton at the hospital as she experienced her second day of pregnancy sickness. She is expected to stay in the central London hospital for several days. Hyperemesis gravidarum is said to be slightly more common when a woman is expecting twins, though the status of Middleton's child (or children) has yet to be confirmed.

"Their Royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting a baby," the palace announced in a statement. "The Queen, The Duke of Edinburgh, The Prince of Wales, The Duchess of Cornwall and Prince Harry and members of both families are delighted with the news.  Congrats to them!