Radiant Catherine shows off tiny bump on first night out in six weeks

The Duchess of Cambridge looked delighted to greet guests at Buckingham Palace. Source: Getty

The Duchess of Cambridge has made her first public appearance since her pregnancy was announced, with a barely-there baby bump.

Catherine looked gorgeous in a demure baby-blue Alice Temperley lace dress at a party at Buckingham Palace to celebrate mental health workers. The £795  (A$1,348, US$1,049) frock by the British designer skimmed over her only very slightly pregnant-looking tummy. 

The duchess looked radiant, showing no sign that she had been laid up for six weeks with an extreme form of morning sickness. A royal aid told the Daily Mail that Catherine was still suffering from hyperemesis gravidarum, which caused her to be hospitalised when pregnant with Prince George, but that her condition was improving.

The palace announced on September 4 that Catherine and Prince William were expecting their third child, with the announcement made early because the duchess’ condition had forced her to cancel royal engagements.

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The young royal certainly looked happy to be in attendance at the event, chatting animatedly with guests, who included actor and presenter Stephen Fry.

Catherine, Prince William, and Prince Harry, have been strong supporters of mental health campaigns, with their Heads Together organisation designed to bring together bodies involved in the field. The party was held to mark World Mental Health Day, held on October 10.

The princes have been outspoken about the anguish they suffered following the death of their mother, Princess Diana, while Catherine recently recorded a message for parents on child mental health issues.

Are you looking forward to another royal baby? Are you guessing it’ll be a little prince or princess?