Sister Wives Star Maddie Brown Brush Introduces Baby Girl: 'Welcome to the World'

https://www.instagram.com/p/CoiLwnEuopI/?hl=en. Madison Brush/Instagram
https://www.instagram.com/p/CoiLwnEuopI/?hl=en. Madison Brush/Instagram
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Madison Brush/Instagram

Maddie Brown Brush is officially a mom of three!

On Friday, the Sister Wives star, eldest daughter of Janelle Brown and Kody Brown, welcomed a baby girl with husband Caleb Brush. The couple is already parents to daughter Evie, 3, and son Axel, 5.

"Welcome to the world Josephine Lee Brush!💚" Maddie wrote on her Instagram Saturday alongside a photo of the newborn in a pink cap and onesie.

https://www.instagram.com/p/CoiLwnEuopI/?hl=en. Madison Brush/Instagram
https://www.instagram.com/p/CoiLwnEuopI/?hl=en. Madison Brush/Instagram

Madison Brush/Instagram

According to the post, "Little Miss Joey" weighed 8 lbs., 9 oz. at birth.

Christine Brown, who divorced Kody Brown over a year ago, extended her well wishes in the comments, writing "CONGRATULATIONS LOVE."

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In December, Maddie shared photos cradling her baby bump and reflecting on the countdown to her third baby.

Maddie Brown Bush
Maddie Brown Bush

Maddie Brown Bush/instagram Maddie Brown Brush, husband Caleb Brush and children

"The mom-t30 weeks and some change! 🤰 I'm not entirely sure where the last 30 weeks went, but ready for the next 10," she wrote.

"Stuck between a place of panic because we have so much to do in the next 10 weeks," she added. "Also hoping maybe for maybe a short 8 weeks so we can meet this baby girl and I can have my body back. 🤣"

RELATED: 'Sister Wives' ' Maddie Brown Brush Reveals Daughter Has Rare Condition Causing Limb Malformation

Maddie shared her exciting pregnancy news in late July, posting a picture of Axel and Evie smiling with their arms around each other while wearing t-shirts that say "big brother" and "big sister."

maddie-brown-brush-1
maddie-brown-brush-1

Maddie Brown Brush and husband Caleb

"The picture says it all! 💛," she captioned the sweet sibling photo. "The Brush family is growing by one early February 👶."

Last month, Janelle celebrated Maddie as a mom in an Instagram post for her birthday.

She captioned the photos: "Happy Birthday @Madison_rose11 !🎉🎉🎉😍. I love that you are my daughter and such a good mom to Axel and Evie."

Janelle also praised Maddie's work ethic: "Thank you for being in my world. P.S. - I love doing business with you. You are such a boss babe! To many more years and many more adventures!"