Princess Kate and Prince William Expecting Their Third Child

HAMBURG, GERMANY – JULY 21: Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge, Prince George of Cambridge and Princess Charlotte of Cambridge view helicopter models H145 and H135 before departing from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany.
(Photo by Samir Hussein/Samir Hussein/WireImage)

And the Royal Fab 4 are soon to be five!

Princess Kate and Prince William are expecting their third child together, Kensington Palace confirmed today. The royals are already parents to 4-year-old Prince George and 2-year-old Princess Charlotte.

“Their Royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting their third child,” a statement from Kensington Palace, released Monday morning, said.

“The Queen and members of both families are delighted with the news.”

During her first two pregnancies, Kate, 35, battled acute morning sickness, also known as Hyperemesis Gravidarum. She is also afflicted with the condition during this pregnancy, according to the statement.

As a result, she canceled a planned appearance Monday morning.

“As with her previous two pregnancies, The Duchess is suffering from Hyperemesis Gravidarum. Her Royal Highness will no longer carry out her planned engagement at the Hornsey Road Children’s Centre in London today,” the statement said.

“The Duchess is being cared for at Kensington Palace.”

Kate is understood to be less than three months pregnant – the palace made the announcement early because of her illness. Last time, when she was pregnant with Princess Charlotte, Kate was also cared for at home at Apartment 1A of the palace.

The birth will relegate Prince Harry – who is visiting Manchester today – down to sixth in line to the throne.

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SOURCE: PEOPLE, Diana Pearl and Simon Perry