The Duke And Duchess Of Cambridge Visit Germany - Day 3

HAMBURG, GERMANY - JULY 21: (NO UK SALES FOR 28 DAYS FROM CREATE DATE) Prince George of Cambridge, Prince William, Duke of Cambridge, Catherine, Duchess of Cambridge and Princess Charlotte of Cambridge depart from Hamburg airport on the last day of their official visit to Poland and Germany on July 21, 2017 in Hamburg, Germany. (Photo by Pool/Samir Hussein/WireImage)

Pool/Samir Hussein

Congratulations are in order for Kate Middleton, Prince William, Prince George, and Princess Charlotte; Kensington Palace shared a statement today confirming the news that the Duchess of Cambridge is pregnant. “Their Royal Highnesses The Duke and Duchess of Cambridge are very pleased to announce that The Duchess of Cambridge is expecting their third child. The Queen and members of both families are delighted with the news.”

The announcement is especially joyful at this time, after a summer of sad remembrances of Princess Diana on the 20th anniversary of her death; In a recent HBO documentary, Diana, Our Mother, Prince William shared that he and Kate often talk about “Granny Diana” to their children.

The statement also notes that, as with her previous pregnancies, Middleton is suffering from a severe form of morning sickness called Hyperemesis Gravidarum, which causes debilitating nausea and vomiting. “Her Royal Highness will no longer carry out her planned engagement at the Hornsey Road Children’s Centre in London today. The Duchess is being cared for at Kensington Palace,” said the statement.

According to People, "Kate is understood to be less than three months pregnant – the palace made the announcement early because of her illness."

The new little one will join big brother Prince George, age 4, who will start school this week, and soon-to-be big sister Charlotte, age 2.

Related: Queen Elizabeth Plots Some Twists For the Next Season of the Royal Family, TV's Longest-Running Soap Opera

Watch: Kate Middleton's Hairstyles Through The Years