The royal family are "delighted" with the news Prince Harry and Duchess Meghan are expecting their first child.
The 34-year-old prince's grandparents, Queen Elizabeth and Prince Philip, his father and stepmother, Prince Charles and Duchess Camilla, and brother and sister-in-law Prince William and Duchess Catherine - couldn't be happier with the news that there will be another addition to the family next spring and they were able to discuss the former actress' pregnancy at the wedding of Harry's cousin, Princess Eugenie, to Jack Brooksbank last Friday (12.10.18).
Kensington Palace said: "The Queen, Duke of Edinburgh, Prince of Wales, Duchess of Cornwall and Duke and Duchess of Cambridge are delighted for the couple and were able to congratulate them on Friday at the wedding in person."
UK Prime Minister Theresa May has sent her "warmest congratulations" to the couple.
She wrote on Twitter: "My warmest congratulations to the Duke and Duchess of Sussex on the happy news they are expecting a baby in the Spring. Wishing them all the best."
The Archbishop of Canterbury, Justin Welby - who officiated the couple's wedding in May - has also sent his congratulations to Harry and Meghan, 37.
He tweeted: "Congratulations to the Duke and Duchess of Sussex on their happy news! Prayers for them in the months ahead."
The Kingdom Choir - who performed at the couple's wedding ceremony earlier this year - were among those to wish the pair well.
On Instagram, they wrote: "We'd just like to send our congratulations to the beautiful couple, the Duke and Duchess of Sussex on their recent announcement."
Harry and Meghan announced their happy news on Monday (15.10.18), shortly after arriving in Australia for their first major overseas tour since tying the knot.
An official statement confirmed: "Their Royal Highnesses The Duke and Duchess of Sussex are very pleased to announce that The Duchess of Sussex is expecting a baby in the Spring of 2019.
"Their Royal Highnesses have appreciated all of the support they have received from people around the world since their wedding in May and are delighted to be able to share this happy news with the public."