Schmitz, 32, announced on Sunday that he and his wife Isabell Hiebl welcomed their first child, son Nico Josef Schmitz.
“Isabel and I welcomed our baby boy, Nico Josef Schmitz, on 9/8/2018 at 9:10 AM!” he excitedly wrote alongside a photo of the new mom giving the couple’s bundle of joy some skin-to-skin contact in the hospital.
Fellow MTV reality star Lauren Conrad quickly offered up a warm congratulations to her pal, commenting with numerous yellow heart emojis.
Schmitz first announced that the couple were expecting a child in March.
Alongside a photo of the couple’s dog wearing a sign that read, “Mom & Dad are getting me a human due: Sep. 10, 2018,” he excitedly confirmed that their “family is growing!!!”
The sweet image also contained a sonograph photograph, some baby clothes, and a sign reading, “Our greatest adventure begins September 2018.”
In a touching nod to his roots, in July, the former reality star announced that the “growing Schmitz family” was moving back to Orange County, California.
Later that month, he shared a photograph from Laguna Beach as he remarked that it was “so great to be back.”
This article originally appeared in PEOPLE.