'Dancing with the Stars' Pro Allison Holker Shares a Sweet New Photo of Newborn Son Maddox

So cute!

Just days after she welcomed her son, Maddox, Allison Holker took to Instagram to share the first photo of her little boy — and the snapshot is too precious!

"Our Maddox is like the beginning of all things — wonder, hope and a dream of possibilities. My life and our family's home is changed forever," the Dancing with the Stars pro, 28, wrote alongside the sweet black-and-white photo of herself holding Maddox's hand on Sunday, April 3.

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Our MADDOX is like the beginning of all things – wonder, hope, and a dream of possibilities. My life and our families home is changed forever. He blessed our lives exactly a week ago and it will never be the same again, and he has brought such a beautiful joy with him. We will let every moment sink in and last a lifetime! This is our family, our happiness and our future. WE WILL LOVE YOU FOREVER MADDOX LAUREL BOSS ❤️

A post shared by Allison Holker (@allisonholker) on Apr 3, 2016 at 4:05pm PDT

"He blessed our lives exactly a week ago and it will never be the same again, and he has brought such a beautiful joy with him. We will let every moment sink in and last a lifetime!" the caption continued. "This is our family, our happiness and our future. We will love you forever Maddox Laurel Boss."

Allison welcomed Maddox with her husband of three years, Stephen "tWitch" Boss, 33, on Sunday, March 27. The pro dancer is already a mom to a seven-year-old daughter, Weslie, from a previous relationship.