Dwayne 'The Rock' Johnson expecting baby girl

Dwayne Johnson and Lauren Hashian are expecting a baby girl. Photo / Instagram

Actor Dwayne Johnson aka The Rock and his longtime girlfriend Lauren Hashian are expecting a baby girl.

It will be the first child for the 43-year-old Ballers star with his 31-year-old girlfriend.

The couple shared their news on Instagram with a photo of Johnson's huge hand covering Hashian's growing belly.

"I was raised by and live with amazing and strong women, so the universe felt we needed one more... IT'S A BABY GIRL!!" said The Rock.

"We're so grateful for this blessing and thrilled to share the news with y'all," he said, followed by some hilarious #hashtags like "#BringOnMoreEstrogenInOurHome" and "#JustOverHereMakingBabiesAndStuff #AndPalmingPregnantBellys."

Dwayne Johnson is already a father to 14 year-old daughter Simone Alexandra Johnson from his previous marriage to Dany Garcia. The two parted ways in 2008.

- AAP