The Duke and Duchess of Cambridge have made it official: the spare to the heir is due in April.
In a statement from Kensington Palace, the royal couple said they were “delighted to confirm they are expecting a baby in April 2015″.
“The Duchess of Cambridge continues to be affected by [severe morning sickness] Hyperemisis Gravidarum, but her condition is steadily improving.”
The Duchess and the royal bump were due to make an official appearance at the Natural History Museum in London on Tuesday.
The royal couple are due to greet the President of Singapore, Tony Tan Keng Yarm and his wife at the Royal Garden Hotel before taking part in a Ceremonial Welcome for the president, who is on a state visit to the UK.
The Duchess is then expected to attend the Wildlife Photographer of the Year 2014 awards ceremony at the National History Museum later on Tuesday.
It will be the first time she has appeared in public since August 5.
The announcement was widely expected after a royal privacy row last week, when images of the Duchess leaving a
London clinic with her husband, who was clutching what was believed to be her 12-week pregnancy scans, were published by American media.
British media chose not to publish the photos.
The couple are quick to defend their privacy – earlier this month they began legal action against a photographer who tried to take a picture of Prince George and his nanny in a London park.
On Tuesday the 32-year-old Duchess will return to London after spending a week resting at her parent’s home in
Bucklebury along with 15-month-old Prince George.
Since news of her pregnancy broke on September 8, she has been forced to cancel numerous engagements due to her poor health, including her first official solo tour of Malta and a visit to a project by London charity group, The Art Room.