Many of the couples’ famous friends left their well-wishes on the post.
“What a feeling, “ wrote Bondi lifeguard Deano Gladstone.
“That hair 😍” added Aussie actor Luke Cook.
The adorable update comes just two days after Tim - who formerly played Pierce Grayson on soapie Neighbours - revealed that he’d “fallen in love twice all over again.”
“I just LOVE LOVE LOVE 💕 our little Elle Robards 💗” he wrote alongside a pic of Anna holding her mini-me. “How bloody amazing!!!! I never knew my wife was a superhero... What a woman!”
The new mum took to Instagram over the weekend to confirm her and Tim's happy news.
Ahead of their firstborn's arrival, the couple were living separately - Tim, 38, was in Melbourne filming Neighbours whilst Anna, 33, remained in their hometown of Sydney.
However, the former Bachelor made the decision to quit his soap acting gig to be closer to Anna especially when Melbourne went into stage four lockdown and he was unable to fly back home.
“It was a really hard decision for him to make. He wanted this role and was so happy when he got it. It’s a big thing for him to walk away from it and not see it through to the end,” Anna told Stellar.
The pair announced they were expecting back in May with a collage of photos of themselves posing with an ultrasound scan.
"It’s been so hard to keep this a secret, over the past few months, but I can now finally shout... I’M PREGNANT!!!" Anna wrote in her caption.
"With everything that’s going on in the world we feel incredibly lucky and grateful to be starting a family together, and we’re so looking forward to this next chapter in our lives. #BabyRobardsComingSoon"
Tim shared his own post that read: "We’ve been keeping busy in lockdown ... I can’t wait to be a Dad!!! The giddy feelings in my stomach show there must be a few nerves, but I know Anna’s going to be an absolutely amazing mother and I couldn’t be more excited to start a family with her!"
It was later revealed that they were expecting a baby girl at a lavish gender reveal party, where Anna admitted she and Tim were "ecstatic" to be having a daughter.