The super private couple didn't release any details about their newborn, but we do know that it's a boy and she gave birth this week, reports People magazine.
Earlier this month during an interview with WEEI Sports Radio, Tom said he was the only one that knew the baby's sex and Gisele wanted it to stay a surprise. "I’m really the only one that knows at this point," he said.
This marks the first celebrity baby born in December this year. Also due this month are Kourtney Kardashian and Kendra Wilkinson. Congrats to the Brady Bunch, can't wait to see what their little bundle of joy looks like!