Duke and Duchess of Cambridge have announced that they are expecting their third baby.

Kensington Palace have shared the Royal couple’s happy news that Kate is pregnant.

Photo: @KensingtonRoyal

Prince George and Princess Charlotte will be welcoming a new sibling in the new year, who will be fifth in line to the throne.

The announcement was made this morning as Kate was forced to cancel a Royal engagement at a children’s centre in London.

The Duchess of Cambridge is suffering from the same extreme morning sickness she has with her other two pregnancies, the palace have said.

A statement from Kensington Palace said: “The Queen and members of both families are delighted with the news.”

The announcement has come at an important time as the royal family marks the 20th anniversary of Princess Diana’s death. The Duke and Duchess will have another milestone this week too, as Prince George prepares for his first day at school.