On Monday, the TODAY co-host and meteorologist revealed that their little guy just set out on his very first day of school.
"And so begins preschool!" she wrote alongside an adorable photo of the 2-year-old tyke. "And Calvin couldn’t be happier or more excited!!"
Of course, she didn't have to tell her followers on Instagram that detail — Calvin's ear-to-ear grin in the pic says it all.
Cal's proud parents are just as happy for him, but when dad shared a different shot from the special day, he admitted they shed few tears, too.
Fichera, an NBC News cameraman, just didn't admit why.
Alongside a black-and-white photo of Dylan helping Calvin cross the road on his big outing, he wrote, "Boy ragweed is HIGH today....eyes are just watering like crazy."
Grab a tissue, dad. That "ragweed" hits parents particularly hard this time of year.
And good luck, Calvin — or as mom and dad put it in their matching hashtags, #GoCalGo!