The news comes as Meghan Markle wished her husband a happy birthday by sharing a collage of never before seen pictures on Instagram.
The Duchess of Sussex wrote the Duke of Sussex - who turns 35-years-old today - a heartfelt message on social media in order to celebrate his big day.
In the bottom right-hand corner of the collage is a special image from baby Archie's christening, which shows Meghan sitting in a chair holding the Royal couple's son, with Harry tenderly looking on.
“Your service to the causes you care so deeply for inspires me every day," Meghan wrote.
"You are the best husband and most amazing dad to our son. We love you ❤️Happiest birthday!”
The collage also features photos of a young Prince Harry with his mother, Princess Diana, as well as a teenage Harry and Prince William.
Meghan Markle and Prince Harry have finalised details for their first official royal tour with baby Archie (the royal family will board a plane to Cape Town in a number of days).
For more royals news, pick up a copy of this month's New Idea Royals magazine.