Stone had been dating co-star Andrew Garflield until 2015 and have been spotted together in 2016 reportedly as friends.
But even though Gosling and Stone have been in other, confirmed relationships, the rumor mill still linked them together in a 2011 alleged frozen yogurt date, reported by the but they were just that — rumors.
Most recently, Ryan dedicated his award to "sweetheart" Eva at the Golden Globes.
And Ryan is certainly private and always has been.” While the actress had said in the past she wasn’t planning to get married or have children, “with Ryan things are different,” a friend told PEOPLE.
“She’s very independent, but she’s content with her partner.
Reps for the couple did not immediately respond to request for comment.
This will be the second child for the pair, who already have a 19-month-old daughter, Esmeralda Amada. Gosling, 35, and Mendes, 42, managed to keep their first pregnancy a secret for several months, with an insider explaining that Mendes “just hasn’t ever wanted anyone beyond her close friends and family knowing more than they had to.