Royal bump debuted as Kate makes first public appearance since pregnancy announcement

The Duchess of Cambridge has debuted her royal baby bump, appearing in public for the first time since it was announced she is expecting her third child.Kate, who has severe morning sickness, joined husband Prince William and brother-in-law Prince Harry at a reception at Buckingham Palace to mark World Mental Health Day.Despite still suffering from severe vomiting (hyperemesis gravidarum), she looked relaxed and was showing signs of a tiny baby bump.