Hey, it’s a girl!
Mendes, 40, and Gosling, 33, began dating in 2011, costarring in the 2012 drama The Place Beyond the Pines.
PEOPLE confirmed the pregnancy in July, but the couple kept Mendes’s growing baby bump under wraps for months.
“Their lives completely changed as soon as Eva got pregnant. They used to travel all over the place together and go on hikes with their dogs. [But in the past few months] she barely left the house,” a source previously told PEOPLE. “Ryan has been taking care of her, picking up food and running errands. He has been very supportive of keeping things a secret.”
Though they hid the happy news, an insider told PEOPLE the stars couldn’t be more thrilled to expand their family.
“This has been a long time coming,” the pal said of the very private parents-to-be. “Ryan and Eva definitely discussed children before. She knows how much he wants to be a dad and he’s going to be an amazing father.”
– Michele Corriston with reporting by Jennifer Garcia