She's almost ready to pop!

Pregnant Sister Wives star Maddie Brown is patiently awaiting the arrival of baby No. 1 with her husband Caleb Brush and she's giving fans an update as she nears her due date! The reality star posted a pic of her growing baby bump on Instagram at about 32 weeks pregnant.

"I feel like I'm 80% belly! But we can't wait to meet this little man!" the 21-year-old wrote in her caption, adding the hashtags "#Pregnancy," and "#BabyBoy."

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Maddie announced that she's expecting her first child with Caleb last November with a sweet photo of her 30-year-old hubby kissing her baby bump, and ever since then, she's been documenting her pregnancy on Instagram. She revealed baby No. 1's gender in January by sharing a sweet photo of her and Caleb holding blue balloons.

"Little baby boy Brush! We can't wait to meet you!!" she wrote in the caption.

She also celebrated the anticipated arrival of Baby Brush with a woodland-themed baby shower last month. The mom-to-be proudly showed off her baby bump in a fitted gray dress and she accentuated her pregnancy curves with a belt made out of flowers — and Maddie's parents Kody and Janelle Brown are just as excited as she is to welcome the newest addition to the family.

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Not only does this baby mark Maddie and Caleb's first child, but it also marks the first grandchild in the Brown family. The polygamous family stars in their own hit TLC series, which is centered around Maddie's father Kody Brown and his four wives — Meri, Janelle, Christine, and Robyn. Kody has 18 children altogether with his wives.

And it seems like having such a large family — including three other mother figures — will come in handy for Maddie as she embarks on her journey as a first-time mom.

“We are both really excited and anxious,” Maddie told _ People_ last fall. “I think every soon-to-be parent is anxious, but we have so much support from both sides of our family.”

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