The exciting news comes as the Duke and Duchess of Sussex officially move in to their new residence, Frogmore Cottage in Windsor.
It is understood the soon-to-be parents have now relocated to what will be their family home, after months of extensive renovations in preparation for the little ones arrival finally finished.
A source previously told the Mail Online the revamp was a very costly affair.
"Frogmore cottage is in an extremely run-down condition and is needing a lot of TLC and heavy restoration to bring it up to the standard ahead of the Duke and Duchess' moving in date.
"The Duchess is very involved in the project and wants a home that is perfect for her, the Duke and her new baby."