The Duke and Duchess have been invited to visit the Commonwealth Realms of Australia and New Zealand by the countries' respective governments.
They will then head to Wellington, Abel Tasman National Park, Auckland and Rotorua in New Zealand. They will depart New Zealand on Thursday 1 November.
The tour will focus on "youth leadership, and environmental and conservation efforts, including the dedication of several new Queen's Commonwealth Canopy projects" and the recovery and rehabilitation of servicemen and women through the Invictus Games, according to a statement from Kensington Palace.
The couple will depart the United Kingdom on October 16 en route to Australia where they'll stay until October 22.
The Duke and Duchess will also attend the Invictus Games Sydney during their tour, which takes place between 20 and 27 October.
"Meghan isn't pregnant, and she and Harry really don't pay much attention to all the rumors as they accept that it's just part and parcel of being who they are, especially given their status as newlyweds", the source explained.
The new royal couple is going on tour later this fall. "Should I campervan? Am I a campervanning girl?", the South Island and Waiheke won her over, inspiring her to write a "love letter to all things Kiwi".
Royal couple Prince Harry and Meghan Markle have confirmed when they're visiting Australia.
Further details regarding the itinerary will be released closer to their arrival.