Kate Middleton shows off her baby bump as she makes first appearance since announcing pregnancy

Prince Williams' wife, the Duchess of Cambridge, Kate Middleton showed off her tiny baby bump Tuesday tonight as she made her first public appearance since announcing her pregnancy last month.

The mother of two joined her husband, Prince William and brother-in-law, Prince Harry to host a reception at Buckingham Palace to mark World Mental Health Day.

An aide revealed to reporters last night, that the duchess is still suffering from hyperemesis gravidarum but said her condition is improving.