Credit: Instagram

Aww, Katie Yeager's adorable daughter Molli is all grown up! The Teen Mom 3 star popped out her kiddo on August 18, 2011. Little Molli weighed a mere 7 pounds, 1.8 ounces, and measured 19 inches long. Fast  forward a year and a half, and baby girl is already taking school pictures!

"My big girl got her school pictures in today :)" Katie posted to Instagram on April 16. Um, we're going to pass out from cuteness overload. Look at Molli's adorable pink bow and matching tutu! Also, love the fact that this kiddo is sticking her tongue out in her school pic — clearly she has her mom's sassy personality.

Credit: Instagram Photo: Katie Yeager Shares Baby Molli's First School Pic

Katie and Molli have been through plenty of changes this past year. Not only did Katie split up with baby daddy, Joey Maes, she and Molli moved from Wyoming to Salt Lake City for a fresh start, and it looks like they're livin' the life!

Can you believe how much Molli has grown up in the past year? Before we know it she'll be buying her very first pair of Uggs, getting a belly piercing, and tattooing someone's face on her stomach. Sob, they grow so fast.

Source: Instagram