Vanessa, 36, gave birth to son Phoenix Robert Lachey on Saturday. The proud parents shared the good news with fans via Instagram on Monday, with both posting the same sweet photo of their newborn holding onto his mom's hand.
Judging from the actress' social media posts, Christmas is a special time for Vanessa. She's been posting lots of adorable snaps of her growing brood over the last few weeks, including Camden sending a letter off to Santa, Brooklyn adorably sitting on her dad's shoulders as they braved the snow, and some of the decorations at her home (including peeks at the baby bump!).