The "Bridesmaids" star gave birth to baby Jack on July 3, her third child with partner Paul Thomas Anderson, reports People.com.
The pair have two daughters, Pearl, 5½, and Lucille, 20 months. We're sure the big sisters are excited about the family's new addition. One thing's for sure -- with three kids, Maya will need her sense of humor.
Congrats again to Maya and Paul on their new bundle of joy.