A royal source tells ET that Doria has been by Meghan's side ever since she arrived in London, England, last month in preparation for the birth of Baby Sussex.
According to the source, Doria has been helping both Meghan and Prince Harry settle into their new home at Frogmore Cottage and is attempting to make things as easy as possible for the parents-to-be. Harry is really enjoying his mother-in-law's company, the source adds, noting that although he's been looking forward to becoming a dad his entire life, he's still feeling a bit nervous.
As for Kensington Palace announcing on Wednesday that the Duke of Sussex is planning a visit to the Netherlands next week, the source says "Prince Harry will cancel the trip at the last minute if necessary."
Meghan reportedly revealed earlier this year that she was due in late April to early May, so her and Prince Harry's first child together should be here any day now! Plans for Harry's upcoming trip are being made on a "wait and see" basis, the source tells us, with events being considered day-by-day. The source adds that this trip was planned more than a year ago, long before the couple knew the due date of their child.
An additional source, a friend of Meghan's, tells ET that she is "so happy" right now. "[She and Harry] love their new home," the source says, adding that "being able to walk freely and enjoy the beautiful area is such a sensational treat" for the royal couple.
ET also learned that Meghan has had a steady stream of friends, family and loved ones come by to visit the new home, as she gets closer and closer to welcoming her first child. As we patiently wait for the announcement that Baby Sussex is here, watch the video below for more on the royal family.