Palace: Kate Pregnant Again Prince William, Kate expecting second royal baby By Evann Gastaldo, Newser Staff Posted Sep 8, 2014 5:21 AM CDT Updated Sep 8, 2014 7:44 AM CDT 19 comments Comments In this July 23, 2013, file photo, Britain's Prince William and Kate, Duchess of Cambridge hold George, the Prince of Cambridge, outside St. Mary's Hospital's Lindo Wing in London. (AP Photo/Lefteris Pitarakis, File) (Newser) – Get ready for another few months of royal baby fever: Buckingham Palace announced today that Prince William and the Duchess-formerly-known-as-Kate-Middleton are expecting their second child, CNN reports. Once again, the world has learned the news because Kate is extremely sick; she's being treated for hyperemesis gravidarum at Kensington Palace and won't be able to make a planned trip to Oxford with William today. It's not clear how far along the pregnancy is, but the BBC reports that she has not yet reached the 12-week mark. Despite her illness, it's a good day for the royals: "The Queen and members of both families are delighted with the news," the palace says. Prime Minister David Cameron tweeted he was also "delighted by the happy news that they're expecting another baby." The Archbishop of Canterbury and other bigwigs have also offered their congratulations. As for Kate's attendance at future events, it will be decided on a "case-by-case" basis, the palace says. And in case you were keeping track, this baby will knock Prince Harry to No. 5 in the line of succession.