By Amber Goodhand - Breaking Celebrity News Reporter

Ben Affleck and Jennifer Garner have finally added a boy to their budding brood and Breaking Celebrity News has learned the couple named the newborn, Samuel Garner Affleck.

The 39-year-old Good Will Hunting star announced the name Wednesday morning on his official Facebook page.

"We are happy to announce on February 27, Jennifer gave birth to a healthy baby boy, Samuel Garner Affleck," Ben wrote.

HOTOS: Ben, Jen & Kids Grab A Bite

Jennifer, 39, gave birth to Samuel on Monday -- making Violet Anne, 6, and Seraphine Rose, 3, big sisters.

Ben and Jen were married in 2005 in a private ceremony while Jen was already three months pregnant with their first child.

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