Zara Phillips at Goodwood racecourse

Zara Phillips at Goodwood racecourse

Britain's Zara Phillips debuted her first maternity dress yesterday (01.08.13).

The 32-year-old royal - who announced last month she is expecting her and husband Mike Tindall's first child - looked stunning in the summer sun as she took in the horse racing at Goodwood racecourse in Chichester, south east England, while wearing a bright yellow dress and nude heels.

Zara - who is three months pregnant - glowed as she attended the Ladies Day event with a selection of her friends including Formula 1 presenter Natalie Pinkham, who was spotted affectionately touching the blonde beauty's bump.

Among the 20,000 racegoers at the spectacle were a host of star-studded guests including 'The Look of Love' actress Anna Friel, 'Murder on the Dancefloor' hitmaker Sophie Ellis Bextor and former ballerina Darcey Bussell.

Zara - who won a silver medal with the British equestrian team at London 2012 - recently revealed she is to stop horse riding for the remainder of her pregnancy.

A spokesperson said: "The fact is that all of Zara's horses have now qualified for the events she wishes to enter them for next year.

"She has done so well already this season, she does not actually need to compete any more. Given that she is pregnant, she has decided to cancel the rest of her entries for the year."

The announcement came days after she had vowed to continue riding throughout her pregnancy.