Update: Daughter Esmeralda Amada Gosling arrived at 10:22 a.m. on Sept. 12 in Santa Monica, California, PEOPLE confirms via the birth certificate.
Originally posted Sept.16: Hey, it’s a girl!
“She’s absolutely in heaven being a mom. She’s never been happier,” a friend tells PEOPLE of Mendes, who delivered via c-section.
“She and Ryan are just in awe of this beautiful person they created. It’s a really special time for them.”
Mendes, 40, and Gosling, 33, began dating in 2011, costarring in the 2012 drama The Place Beyond the Pines.