The source tells ET that Harry has been in touch with his grandparents, Queen Elizabeth II and Prince Philip.
Royal expert Katie Nicholl shares why the royal family may want the tell-all to premiere at a later date.
Queen Elizabeth II's husband has been hospitalized since Feb. 16.
The 99-year-old Duke of Edinburgh is expected to stay in the hospital 'until at least the end of the week,' the Palace says.
Prince Harry and Meghan Markle's 1-year-old son uses the gift from his grandmother every day.
Buckingham Palace announced on Tuesday that the 99-year-old Duke of Edinburgh is 'receiving medical attention for an infection.'
Princess Eugenie and husband, Jack Brooksbank, are thrilled to be new parents to baby August Philip Hawke Brooksbank.
Prince Philip is said to be in good spirits after he was recently hospitalized.
The Prince of Wales was photographed arriving at King Edward VII hospital in London on Saturday.
A royal source tells ET, 'The doctor is acting with an abundance of caution.'
The 99-year-old royal has been admitted as a 'precautionary measure.'
The royal couple has been spending their time at their Windsor Castle home amid the coronavirus pandemic.
Queen Elizabeth and Prince Philip will be spending the holidays at Windsor Castle in quarantine.
The three children of Prince William and Kate Middleton made a special card for their great-grandparents' wedding anniversary.
