Popsugar Celebrity The Royals When Did Prince Will and Kate Middleton Start Having Kids? How Meghan and Harry's Baby Timeline Compares to Will and Kate's October 18, 2018 by Lauren Turner View On One Page Photo 1 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 1 Kate and Will left the hospital, where Kate was being treated for hyperemesis gravidarum, days after their pregnancy announcement in December 2012. Previous Next Start Slideshow The RoyalsKate MiddletonPrince WilliamThe British Royals