Speaking with News Corp one month later, the tennis champion said motherhood was "incredible."
"It's the best thing I've ever done, and hardest thing I've ever done," she admitted candidly.
"Hayden is amazing, I feel so very lucky. Garry and I are just [really] enjoying what is a pretty quiet time together as a little family."
Ash went on to add that it had been heartwarming to see her family bond with her newborn son.
"Having seen my sisters become mums, and spending so much time with their kids, I had some idea of how it would feel, but it's certainly at a different level when it's your own child, and they are completely dependent on you! It's pretty incredible!"
Scroll on to take a look back on some of Ash's sweetest moments with her baby boy....
Baby Hayden helped celebrate his daddy's 32nd birthday on November 18th, eagerly eyeing off a special birthday sausage sandwich.
Garry captioned these gorgeous photos of his day with "best birthday yet! 🎂," presumably due to now having his darling baby boy to celebrate with.
Ash responded in the comments section of his post, simply writing: "We love you ❤️."
In mid-November, Ash shared this cute a-button photo of baby Hayden to her Instagram story, her chubby bubby all smiles as he posed for his mum's camera.
As doting dad Garry continues to post adorable photos of his baby boy in various soccer jerseys, Hayden's mum Ash made headlines in November 2023 when she revealed she was releasing a new book titled My Dream For You in March 2024.
The book is being created in conjunction with writer Jasmin McGaughey, illustrator Jade Goodwin and being published by HarperCollins.
It will explore a mother's dream to spend time with and create special memories with her new baby.
"I'm so excited for the release of this beautiful picture book," the tennis champion said.
"It's a celebration of the possibilities that await new babies, a testament to the hope that every parent holds, and a reminder that our dreams can shape a brighter future for our children."
Returning to the court to play some casual tennis with some young fans in September 2023, Ash made a hilarious reference to her number one fan waiting on the sidelines.
"Back to red ball 🤨 Coaches seemed happy enough 👌🏽 Spectator just enjoyed a snooze in the shade 💚💜," the tennis champion joked, sharing a sleep snap of baby Hayden cradled in her arms.
"Outnumbered by the boys. Love every single minute 👶🏼," Ash captured these sweet snaps that same month.
Doting dad Garry is a huge fan of the English soccer club Liverpool F.C. and it seems like he's keen for baby Hayden to follow in his football-loving footsteps.....especially with the matching jersey and onesie.
The athletic couple has wasted no time introducing their son to the wide and wonderful world of sports - all in his first month of life!
In a snap shared by his proud dad in August, Hayden can be seen chilling with the "lads" - aka dogs Maxi and Rudy.
He may only be a newborn, but baby Hayden sure looks like he loves to learn already.
What a handsome little fella!
In an August 2023 interview with NewsCorp, Ash admitted that despite some sleepless nights thanks to her newborn, she had continued to be an early riser (and exerciser).
"My hands are a little bit more full now but my morning walk is still my favourite part of the day," she said at the time.
"The pack of hounds and Hayden and I all out together and getting on with the day!"
"My Tuesday boys club 🐶👶🏼🐶," Ash captioned this snap shared to her Instagram feed of baby Hayden swaddled up against his mother's chest.
Our beautiful boy ❤️ Welcome to the world, Hayden!," Ash and Gary captured this gorgeous photo of their newborn son on July 4th, 2023.