Baby Sofia is getting bigger by the minute—and Alex Drummond just shared the sweetest little proof!

In a recent round of Instagram Stories, Alex posted a close-up of Sofia grinning from ear to ear while showing off her newest "toofers." You can see the tiny teeth peeking through as Alex gently lifts her lip and it's impossible not to notice those rosy cheeks that come along with teething. "Had to show off the toofers 😁," she wrote. (And honestly, we're so glad she did!)

infant wearing a heartpatterned outfit with hands visible
Alex Drummond

In another photo, Sofia is leaning toward the camera in a pale pink sweater with a big heart across the front, grinning like she knows she's the center of her mom's whole world. In this shot, Alex even pointed out the "rosy teething cheeks" (which are impossibly cute, we must add). Between the smile on her face and the sparkle in her eyes, this might be the most grown-up we've seen Sofia looking yet!

alex drummond sofia teeth
Alex Drummond

Isn't it just bonkers to think how much has happened over the past several months? Not too long ago, Sofia was trying to master her crawl and barely scooting across the floor. Now she's fully mobile and *extremely* interested in standing—which she loves practicing in her crib, much to her mom's surprise when she checks the baby monitor and sees her toddler already upright and ready for the day. 😂 Sofia also had her first experience with Mother's Day Out, which feels like a big deal for everyone involved, even if it's just a few hours at a time. Add in the little bows that are finally staying properly in her hair and the way she can hold herself up so confidently, and it's clear this baby phase is moving right along.

At this rate, those "toofers" won't be the only new development for long!