Three weeks after the news of Eva Mendes' pregnancy broke, the actress and her longtime boyfriend Ryan Gosling have welcomed their second child.

According to a birth certificate obtained by TMZ, the couple welcomed Amada Lee Gosling on April 29 at 8:03 a.m. at Providence St. John's Health Center in Santa Monica, California.

WATCH: Eva Mendes Fashionably Hides Baby Bump While Out With Ryan Gosling

The newborn will join the couple's daughter Esmeralda, who will turn 2 on Sept. 12.

Mendes was spotted covering up her baby bump two weeks before giving birth. The 42-year-old actress was snapped while leaving a medical building in Los Angeles, wearing a floral maxi dress and toting a big purse.

The news came hours before Gosling's Monday night appearance on "Jimmy Kimmel Live!."

Gosling was spotted outside of Kimmel's Hollywood studio earlier in the afternoon, wearing a button-down red shirt with black jeans, sunglasses and clutching a brown bag.

Despite the couple's protectiveness over their privacy, Mendes opened up to Wendy Williams about motherhood last September.

WATCH: Ryan Gosling and Eva Mendes Celebrate Esmeralda's First Birthday With Family Bash

"I've never appreciated my family so much, they've been amazing," Mendes shared. "I don't technically have a nanny, but I do have help. I like to clarify. I'm certainly not anti-nanny, you do what you need to do as a parent, but I'm so grateful that I have help with my family and [Gosling's] family."