The 37-year-old "New Girl" actress and "Kicking & Screaming" host's representative confirmed Wednesday to E! News that Simone welcomed a baby boy with husband Jesse Giddings this month.
Simone appeared to hint at the news Aug. 19 by posting a photo of herself holding a dessert reading "Congratulations."
"Sheetcakin my way through Saturday," she captioned the picture on Instagram.
The star also shared a photo of herself Aug. 15 that did not seem to feature a baby bump.
"This is my happy face because my best friend abducted me from my house at 2 am and took me to my favorite diner for pancakes and waffles for absolutely no reason while the waitress got super annoyed at me for just draining cup after cup and the huge meatheads sitting next to us tried to find out what was vegan in a place that almost exclusively serves pastrami," she wrote.
Us Weekly reported in April that Simone was pregnant and had married Giddings at a secret wedding ceremony in June 2016.
The couple have never publicly confirmed their relationship, although Giddings did gush about Simone in an Instagram post in December 2015.
"Congratulations to the most beautiful, talented, fascinating [expletive] girl I know on 100 New Girl episodes shot this week!!! Here's to another 100!! @therealhannahsimone #Muse," the 32-year-old television personality wrote.
Simone plays CeCe Parikh on "New Girl," which was renewed in May for a seventh and final season on Fox.
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