As noted, The Rock and his girlfriend, Lauren Hashian, are expecting their first child together, and Rock confirmed the rumors in the below post on Instagram.
Furthermore, WWE congratulated the couple by posting the following on WWE.com:
Dwayne “The Rock” Johnson has confirmed on Instagram that he and his longtime girlfriend Lauren Hashian are expecting a baby girl. The People’s Champ and Hashian met while filming “The Game Plan” in 2006. Congratulations to The Great One!”