Kenzington Palace announced on Monday that Megan Markle Duke of Sussex and wife of Prince Harry, grandson of Queen Elizabeth Queen of England.
"The Duke and Duchess of Sussex are pleased to announce that they will be born in the spring of 2019," the palace said in a statement.
The announcement came after her arrival with Harry to Australia on their first official foreign tour since their marriage in May.
This is the second round in Australia, conducted by the younger generation of the royal family after the visit of Prince William, his wife Kate and their eldest son George in 2014.
Duke and Duchess Sussex are scheduled to travel from Sydney Harbor to the Opera House on Tuesday, watch a dance performed by a contemporary indigenous band and watch the koala at Taronga Zoo. The couple will meet farmers affected by severe drought on Wednesday.
Harry and Megan's visit coincides with the Infectus Games for Army Veterans from 20 to 27 October, and Prince Harry's Games are an annual event that resembles the role of special games.
The couple will also visit New Zealand, Tonga and Fiji in the South Pacific during the tour.
