In her accompanying interview with Vogue Mexico, Ferrer, 27, revealed how she realized now was the perfect time to have a child.
"After quarantine, I said: 'This is my moment. No, not my moment. This is my baby's moment,'" she shared.
Her and Balvin's dog, Enzo, kept her company during a series of pregnancy tests -- "I did three tests in a row because I couldn't believe it," she said -- and then she shared the news with her boyfriend.
"'He froze," she recalled of Balvin's reaction. "He was happy, but it was like a call from Zoom that does not work when the WiFi crashes. He stayed frozen. I told him in person, but that's how he reacted."
As for her approach to pregnancy, the former Miss Argentina said she's viewing her body's many changes as "something natural."
"As long as I take this as something natural and let it flow, I won't be thinking about how long I have left or if I'll gain weight, I'm just going to live this day by day," she expressed. "That's helped me a lot."
"I won't stop doing the most important things, like my career, it's something I love," she added. "I want to do something that I love and that's my passion, [but that I also] can raise my children and still work."
Balvin and Ferrer met when she appeared in his 2017 music video for "Sigo Extrañándote." See more on Balvin in the video below.