Meghan Markle is pregnant with her first child.
Kensington Palace has confirmed the Duchess of Sussex is due in spring 2019.
"Their Royal Highnesses have appreciated all of the support they have received from people around the world since their wedding in May and are delighted to be able to share this happy news with the public," Kensington Palace said in a statement.
The Duchess sparked pregnancy rumours earlier on Monday when she was spotted holding two large folders in front of her stomach as she stepped off the plane in Sydney.
A blue ruffled dress she wore to a benefit concert in September also caused many to speculate whether she might be expecting.