This is the sixth child for David Foster, who married Katharine McPhee in June 2019
"He was punctual and arrived right on his due date, much to the delight of his parents," she says
"I have a newfound respect for any woman who has children," she says while detailing some pregnancy struggles.
Polizzi said the rest of her family tested negative for the coronavirus.
"Motherhood is for sure the most meaningful thing that has ever happened to me," the actress says.
The singer previously opened up about suffering a miscarriage.