She announced she was expecting her first child with husband Garry Kissick last month.

And on Monday, tennis legend Ash Barty, 26, concealed her growing bump underneath a baggy jumper as she jetted into Brisbane with Garry.

Ash dressed in a comfortable loose green and white jumper as she strolled through the airport.

She completed her look with grey pants and white sneakers for the flight.

Meanwhile, Garry wore a purple T-shirt and black shorts as he pushed the couple's remaining luggage to an awaiting car.

Ash announced the happy news of her pregnancy on Instagram last month by sharing a photo of her Border Collie sitting next to a pair of baby shoes.

'2023 set to be the best year yet. We are so excited for our new adventure,' she captioned the post.

Many of Ash's famous friends from the sports world left congratulatory comments, including runner Nedd Brockmann, and tennis players Johanna Konta and Priscilla Hon.

The official accounts for the Australian Open, Tennis Australia and the Women’s Tennis Association also commented on the post.

Ash married her long-term boyfriend Garry in a private ceremony at a secret venue in Queensland back in July of last year.

The guest list at their wedding included a handful of fellow tennis stars, including Pat Rafter, Casey Dellacqua and Alicia Molik.

The Australian tennis star met her husband at Brooklands Golf Club in Queensland in 2016 during a round of golf, and they have been together since.

Garry works at the golf club, with Ash also a talent in the sport.

Ash, despite being one of the best tennis players in the world, offers little insight into her world away from the sport - which she retired from last year at the age of 26.

Known for being notoriously private about her personal life and relationship, she opened up about Garry in an interview with Vogue.

'He's extremely patient with me, and when we met he didn't know a lot about tennis,' Ash said.

'He's kind of been thrown in the very deep end in understanding what the tour is like and how much we're apart ... [But] he's the best person to have around in the sense of switching off from tennis and being able to bring the fun and laughter.

'I certainly wouldn't want to share this journey with anyone else.'