This Mother's Day was one Witney Carson will never forget.

The Dancing With the Stars pro welcomed her second child, a baby boy, with husband Carson McAllister just before the holiday on May 13.

"Jet Carson McAllister," she wrote on Instagram May 15 alongside a photo of her smiling newborn. "Decided to join us two weeks early on May 13th at 9:21pm, just in time for Mothers Day. Our hearts have doubled in size for our Jetty boy. He's the most perfect addition to our family and has already given us so much joy! We love you baby boy."

The little one joins big brother Kevin Leo McAllister, a.k.a Leo, 2. "My boys," Witney captioned a May 14 Instagram photo that showed her holding Jet as Carson and Leo kissed her cheeks. "Could there be a better Mother's Day gift?? We are on cloud nine and soaking in every second."

And it looks like mom and baby are both doing well.

"We are all good over here!" the mirrorball winner added in a message to fans on Instagram Stories. "Baby is doing great. Thank you for checking in on us. More updates soon."