The Duke and Duchess of Cambridge Prince William and Catherine Middleton are expecting a baby.
St James's Palace announced on Monday that Kate is in the hospital suffering severe morning sickness.
The baby would be the 3rd in line to the British throne currently occupied by Queen Elizabeth II.
"Their Royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting a baby," St James's Palace said 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."
The statement added: "The Duchess was admitted this afternoon to King Edward VII Hospital in Central London with Hyperemesis Gravidarum (severe morning sickness).
"As the pregnancy is in its very early stages, Her Royal Highness is expected to stay in hospital for several days and will require a period of rest thereafter."