Attending a Magic Millions polo event on the Gold Coast, Zara looked positively blooming as she showed off her baby bump in a stylish, navy dress paired with a straw boater hat.
Meanwhile, her rugby star husband opted for a summery, tartan print jacket, chinos and shades.
The pair have become regular attendees at the Magic Millions event, held every January.
Zara – who already shares three-year-old daughter Mia with Mike – suffered a devastating miscarriage just over one year ago.