Madison and Rotella, who are also parents to 3-year-old daughter Rainbow Aurora, confirmed in March they were expecting their second child.
PHOTOS: Stars Share Pics of Their Cute Kids Rotella was more verbose in the caption of his sweet snapshot, which showed his son's hand resting on his own."What an incredible week," he shared.
"Yesterday Holly, Rainbow & I welcomed a healthy 8-pound, 14-ounce baby boy to the family.
Now I'm holding my beautiful son at the hospital reading amazing birthday wishes from all of you.
Definitely one of the most memorable weeks of my life!
A crazy, stressful start, which transformed into this magical moment,” Rotella wrote.
“First, a five-year-long indictment against me was finally dismissed; then yesterday Holly, Rainbow & I welcomed a healthy 8-pound, 14-ounce baby boy to the family.
Now I’m holding my beautiful son at the hospital reading amazing birthday wishes from all of you.” “Definitely one of the most memorable weeks of my life!
Lots of love to everyone who took the time to post, tag or send me a message online. While Madison also shared a sweet photo of her newborn son, the couple have yet to reveal the child’s name.
"WATCH: What Holly Madison Wants to Teach Her Daughter About Playboy Rotella promised that the family will be sharing a ton of photos of their brand new bundle of joy once they take him home.
The couple, who began dating in 2011, welcomed their daughter, Rainbow Aurora, in March 2013.
Later that year, in September, the two tied the knot at Disneyland. Check out the video below for a look at a few other celebs who are expecting later this year.