The actor and girlfriend Lauren Hashian welcomed their first child together, a daughter, on Wednesday morning, Dec. 16, PEOPLE confirms.

“Both Mom and Dad are over the moon; Christmas definitely came early!” a source close to Johnson tells PEOPLE.

“So grateful and in awe of this time. To experience creating a little life is just incredible,” Hashian, a 31-year-old singer/songwriter, captioned an Instagram photo earlier this week. “This beautiful cycle of life and womanhood beginning again. #LetsJustHopeBigDaddyDoesnt=20lbBaby”

The San Andreas star, 43, brought his own hashtag game, captioning the image, “#BringOnMoreEstrogenInOurHome #MeAndPuppyHobbsAreTheOnlyDudes #Proud2xPapaBear #JustOverHereMakingBabiesAndStuff.”