It's confirmed. When spring comes, a new addition comes to the British Royal Family. The Duke and Duchess of Cambridge have announced that they are set to welcome their second child in April 2015.

"Their Royal Highnesses The Duke and Duchess of Cambridge are delighted to confirm they are expecting a baby in April 2015," a Kensington Palace spokesman announced.

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As of this time, the duchess is still suffering from extreme morning sickness.

"The Duchess of Cambridge continues to be affected by hyperemisis gravidarum, but her condition is steadily improving," Kensington Palace released in an official statement.

The Duchess' pregnancy was announced last August after the severity of her morning sickness was made known to the public. She was eventually forced to back out from various engagements, including a visit with Prince William Oxford, an appearance at the Invictus Games, and an official trip to Gibraltar.

Staff of the Duke and Duchess of Cambridge announced in the last week of September that she will resume official duties this month. The royals' spokesperson said: "There will be engagements in October and November," although no specific details of her engagements have been announced yet.

The duchess is slated to join Prince William and Queen Elizabeth II in welcoming Singapore President Tony Tan and his wife on Tuesday. Tan and company who will be on a four-day state visit.

The Duchess of Cambridge is also scheduled to grace the Wildlife Photographer of The Year 2014 Awards Ceremony at the Natural History Museum.

Royal sources can reveal that the duchess has been enduring the same condition that once inflicted her when she was pregnant with Prince George. But rather than be treated in the hospital, she opted to stay home.

The condition is said to be a very rare case, affecting one-in-100 women. Symptoms usually subside when the woman is between 14 and 16 weeks pregnant. That gives her around four more weeks to endure.

TagsDuchess of Cambridge, Kate Middleton, Prince William, British Royal Family