Amanda Peet and David Benioff

Third time's the charm! Actress Amanda Peet and her husband, David Benioff, welcomed their third child yesterday, confirms People. This is the first boy for the couple, who also have two daughters (Frances Pen, 7, and Molly June, 4) together. No name has been announced yet.

The couple didn't confirm Peet's pregnancy until this past August, when she appeared at the Emmys with a baby bump. Peet recently had roles in "The Good Wife" and "Identity Thief," while Benioff is the co-creator of "Game of Thrones."

Peet is also an Every Child By Two ambassador for the Shot@Life campaign. As a mother, she is passionate about helping children around the world have access to vaccines.

In an essay for the Huffington Post last year, Peet wrote, "When it came time for me to decide whether or not to vaccinate my own children, I thought about the responsibility that comes with being a mother. For me, this responsibility of motherhood transcends borders and cultures."

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Image: Amanda Peet and David Benioff at the 2014 Emmy Awards via Shutterstock