Bindi Irwin took to Instagram Saturday to update her followers about her future arrival.
The 22-year-old star of "Crikey! It's the Irwins" posted a profile shot, writing, "My beautiful mum took this photo yesterday. Baby girl is doing great. Every time we get an ultrasound she's incredibly energetic and always moving around."
Keeping it on-brand, she couldn't help making an animal-kingdom reference, writing, "She's now about the same size as a mountain pygmy-possum. Too cute!"
Previously, Irwin had updated everyone on her pregnancy in September, writing, "Baby girl, you are our world. ❤️. Our beautiful daughter is now about the same size as a hatchling Aldabra tortoise and is as healthy as can be. We can't wait for her arrival next year."
Bindi, the daughter of the late Steve Irwin, wed Chandler Powell in March, announcing in August that they were expecting their first child.