It's been rumoured for weeks that Doria has been staying at Frogmore Cottage with her daughter and son-in-law. However, the recent sighting of her dogs is further proof the 62-year-old is currently by Meghan's side.
The Duchess of Sussex is set give birth to her first child any day now, though some fans believe the royal baby may have already arrived after the couple revealed their plans to break royal tradition and keep the birth private.
"The Duke and Duchess look forward to sharing the exciting news with everyone once they have had an opportunity to celebrate privately as a new family," Buckingham Palace said in a statement.
It has also been reported that The Queen, who recently visited her grandson and his wife at their new home, has cleared her schedule and will only carry out official engagements taking place in Windsor over the next seven days.