Congratulations are in order for Dwayne "The Rock" Johnson and longtime girlfriend Lauren Hashian -- the couple welcomed a baby on Dec. 16.

E! News is reporting that the couple had a healthy baby girl. It's the couple's first child together, but the second child for The Rock, as he has a 14-year-old daughter from a previous marriage.

A source said that Dwayne "was very emotional and excited seeing his newborn daughter for the first time." The insider added that he is ecstatic that everything went smoothly.

Over the weekend, Lauren spoke about her pregnancy on Instagram, reposting her man's pregnancy announcement from November.

"I know I'm late to the party... Sometimes life gets full and busy in the best ways :)... So grateful and in awe of this time," she wrote. "To experience creating a little life is just incredible. This beautiful cycle of life and womanhood beginning again. And like Big Daddy says - Couldn't be prouder of all the kickass women she's going to have around her! And Men of course ;).. #LetsJustHopeBigDaddyDoesnt=20lbBaby."

In his initial announcement, The Rock said, "We're so grateful for this blessing and thrilled to share the news with y'all."

Dwayne has been open about his relationship with Lauren and his daughter to Esquire.

"I've lived with my longtime girlfriend, Lauren Hashian, going on, like, eight, nine years now," he said. "We spend a lot of time with my daughter in Florida, Simone...We do these stories and we talk so much about the business end, the success end, but then Lauren isn't mentioned and my daughter isn't mentioned. I always like making sure we find the balance and my home life is in there and Lauren Hashian is in there and my daughter is in there."

"You gotta get the better half in there," he continued. "With all the cool s--- and success that I've been lucky enough to get? That doesn't happen unless the home life is solid."