James Hunter was 8 pounds, 6 ounces and 22 inches long at birth, Stage’s representative confirmed.
The pregnant model’s tiny belly caused a huge uproar on social media.
Stage, 30, regularly posted pics showing off her barely-there pregnancy belly on Instagram and other social sites. In her last picture, posted two days ago, her tummy was larger, but her abs seemed to have remained sleek and toned.
Her 1.3 million Instagram fans were vocally divided on whether she looked fit or famished.
“Check this out...almost 9months pregie and look at that tummy!!!” one admirer said of a modeling shot depicting Stage in lingerie.
”Hope I look like this when im 8 months pregnant,” another wrote on a post about a month ago that garnered over 10,000 comments.
“I don’t know how someone could say something like that to a pregnant woman," she said. "I think that is so rude. My baby is healthy and we are happy.”
The model said she gained about 20 pounds throughout her pregnancy.