Eva Mendes, Ryan Gosling Top Secret Birth We Already Had Our Baby!!!

5/9/2016 4:36 PM PDT

Eva Mendes, Ryan Gosling: Top Secret Birth ... We Already Had Our Baby!!!


Eva Mendes and Ryan Gosling just pulled off the biggest cover-up in Hollywood baby history -- they had one 2 weeks ago, and hardly anyone even knew she was pregnant.

According to the birth certificate obtained by TMZ ... Amada Lee Gosling was born April 29th at 8:03 AM. The baby was born at Providence St. John's Health Center in Santa Monica. 

The mother on the birth certificate is listed as Eva De La Caridad Mendez. The dad is Ryan Thomas Gosling.

We got this pic of Eva 2 weeks before she gave birth, and she's covering up her belly. Who knew she was 8 months pregnant.

And check out this picture ... Eva was at an 'SNL' after-party in December and fully covered up.

The birth certificate was signed on May 3rd.  We don't know if Eva stayed in the hospital between the date of birth and the signing of the birth certificate. 

The couple has another child, Esmeralda Amada. She's 20 months old. It's a little weird the newborn has the same first name as the middle name of the older child. Amada is the name of Eva's grandma.