Bindi Irwin ready to give birth 'any day now' according to her brother

The newest Irwin family member is almost here!

Bindi Irwin, 22, is ready to give birth any day now, her brother Robert told 9News. He added that her baby belly is "defying gravity".

He also revealed the nickname he's given himself: "I'm the funcle... the fun uncle. And mum is going to be 'Grandma Bunny'."

READ MORE: What happened between Bob and Terri Irwin?

Irwin's official due date isn't until the end of March. She announced the pregnancy last year just months after her marriage to Chandler Powell.

"Chandler and I are proud to announce that we're expecting! It's an honour to share this special moment in our lives with you," she said at the time.

Bindi recently celebrated 29 weeks of pregnancy by sharing a beautiful photo of herself cradling her baby bump alongside Powell.

"All the love in the world," she captioned her post.

RELATED: Bindi Irwin and Chandler Powell's relationship timeline

In November, Bindi gave fans a first glimpse of her unborn baby in a video of their ultrasound appointment.

"Our beautiful daughter is the light of our lives," she said of the video. "Beyond thankful that she chose us to be her parents. I can't wait for her to be here next year."

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