REPORT: Carey Mulligan Welcomes Baby With Marcus Mumford, Looks Flawless in Red Carpet Return

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Exciting news for Carey Mulligan!

The 30-year-old British actress gave birth to her first child with her husband, Mumford & Sons frontman Marcus Mumford, E! News reports. Impressively, Carey returned to the red carpet on Wednesday for the European premiere of her new film, Suffragette, at the London Film Festival.

Not surprisingly, the notoriously private star stayed tight-lipped about the baby news, and looked flawless as usual mixing prints in a loose sweater and a knee-length skirt.

WATCH: EXCLUSIVE -- Get Your First Look at 'The Walker' Starring Carey Mulligan and Her GBF

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"Carey has given birth to a healthy and happy baby," a source tells E! News. "She is just enjoying this time with her family and close friends."

ET has reached out to Carey's rep for confirmation.

Carey and Marcus have been married since April 2012. The Great Gatsby star's pregnancy was first reported in June.

"I've always wanted to be a mother," she recently told Elle UK. "I love what I do, but I'm excited for this next phase of my life."

Congrats Carey!

WATCH: Carey Mulligan and Marcus Mumford's 'How We Met' Story Is Too Cute for Words

Watch the video below to see the Oscar-nominated actress dish to ET on what it was like kissing her Great Gatsby co-star, Leonardo DiCaprio.

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