Recently, 7 Little Johnstons star Liz Johnston celebrated her daughter’s major milestone—and TLC fans can’t get over how fast she’s growing.

On Wednesday, April 3, Liz, 22, took to Instagram with a collage of photos of her baby girl, Leighton. “5 months for our Leighty-Bug❤️🥰🤩,” the new mom captioned her post.

Highlights included Liz holding her daughter next to her mom, Amber Johnston, before she blew out her “45” birthday candles and next to the “Easter Bunny” (presumably Leighton’s dad, Brice Bolden). Another shot showed Liz, Brice and their daughter posing with Brice’s parents. In yet another snap, Liz’s younger sister, Emma Johnston, sweetly holds Leighton, and Brice cuddles Leighton in another.

In the comments, Emma wrote, “I love my leighty-bug to death 😘😘😘 she’s becoming so sassy.”

Liz’s friend, Dacey Triplett, commented, “She’s a cutie!! such a blessed little gal!

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Meanwhile, proud grandma Amber also marked Leighton turning 5 months old on her Instagram grid. “🎀 5 months 🎀,” she captioned a carousel of photos.

The Johnston family matriarch’s followers pointed out how big her granddaughter has gotten. One person wrote, “5 months already!? People are so right when they say babies grow so fast🥹.”

Another Instagram user commented, “Where does time ⏲️ go 😍.”

Someone else declared, “Wow! She’s getting soooo big! Healthy baby! 💕 ”

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Liz and Brice welcomed their first child in November 2023. Currently, Season 14 of 7 Little Johnstons is airing on TLC—and Liz has yet to announce her pregnancy. It’ll be interesting to see how Amber and Trent react to the big news!

Catch new episodes of 7 Little Johnstons on Tuesdays at 10 p.m. ET on TLC.