Eva Mendes and Ryan Gosling welcome a baby girl!

Eva Mendes and Ryan Gosling have welcomed a baby girl! Photo: Getty Images

It's official! Sources have confirmed that Eva Mendes and Ryan Gosling welcomed a daughter on September 12.

"Eva is so happy she's a mom, their baby girl is perfect!" a source revealed to E! News of the first-time parents' little bundle of joy.

"They are at home now with the baby and Eva is feeling great," the source added.

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The source also revealed that the good-looking duo shed a few tears of joy when they saw their little girl, whose name is yet to be announced.

"It was very emotional for Eva and Ryan. They were both in tears when they saw their daughter for the first time!"

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The couple has kept a low-profile during the pregnancy, however the actress was spotted concealing her baby bump with several pieces of clothing while out in LA on July 10.

Pregnancy rumours first began swirling in February when Eva refused to go through body scanners at the airport, however she addressed the reports on the Ellen DeGeneres show.

"It's so ridiculous. It all started because I didn't want to go through the scanners at the airport," she said.

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You know those X-ray scanners, which are really creepy? They basically see you naked, right? And not only that, but there's a radiation aspect to it, so I always opt out."

In July an insider told OK! magazine that the Hitch actress was already seven months along, adding: "She's been ready for motherhood for a while now."

The private couple first began dating in 2011 after costarring in The Place Beyond the Pines.

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