( CNN ) April , come she will . Or he . While we do n't yet know the gender of the Duke and Duchess of Cambridge 's second baby , we now know the royal couple will become parents in April 2015 . `` Their Royal Highnesses The Duke and Duchess of Cambridge are delighted to confirm they are expecting a baby in April 2015 , '' the website of the Prince of Wales announced Monday . As during her first pregnancy , Catherine continues to suffer from hyperemesis gravidarum , the palace said . The condition involves nausea and vomiting more severe than the typical morning sickness many women suffer during early pregnancy . But she is doing better , the palace said . The couple 's first child , Prince George , was born in July 2013 . The second child will become fourth in line to the British throne . Ladbrokes , a British online betting company , said Monday that bettors are placing their odds on baby No . 2 to be a girl . The heavy favorite for a name ? Elizabeth .
The gender is still unknown . Catherine continues to suffer from hyperemesis gravidarum . The couple 's first child , Prince George , was born in July 2013 . Online betting company says bettors are placing their odds on baby No . 2 to be a girl .