The actress shared the news with People magazine revealing her growing bump in a glossy photoshoot.
Beatriz didn't share any more details on her baby's impending arrival but, in the accompanying interview, the 40-year-old, who came out as bisexual in college, explained she didn't think she would ever settle down with a husband and child.
"I didn't think that a committed partnership was really for me," says the actress. "I couldn't really see kids. It wasn't that I was closed off to it. It was more that I couldn't quite see how a baby fit into the life that I was building."
However, after marrying her actor husband in 2018, the couple are now prepping to be first-time parents, and are both committed to raising an understanding child who believes in equality.
"I think one of the best things you can do is raise a kid who understands that however a person chooses to shape their one glorious life is worthy of celebration," she says.
Beatriz will next be seen in the highly-anticipated movie "In the Heights", playing a sassy salon stylist.
The couple received outpouring support from fans and friends alike on social media.
Fellow actress Angela Kinsey exclaimed, "Soooooo happy for you two!!"
Director Jon M. Chu penned, "love you!! Get ready for the adventure!"