Zoe Saldana is officially a mom of three!

The Star Trek Beyond star took to Instagram on Saturday to announce the arrival of her third child, a precious baby boy, with husband Marco Perego. His name? Zen!

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Saldana revealed the exciting news with a sweet snap of the newborn lying on a blanket next to her and Perego's older sons, 2-year-old twins Cy and Bowie.

"Marco and I are elated to share the news of the birth of our son Zen," the 38-year-old actress captioned it. "We couldn't feel more blessed with the new addition to our family. #threeboys... oh boy!"

ET has reached out to Saldana's rep for comment.

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When ET caught up with Saldana in January at a junket for her new film, Live By Night, the Passaic, New Jersey, native opened up about life at home with twins.

"They're totally gangsters," she joked. "These kids are like up at night!"

"One is more into talking in Spanish. The other is expressing himself more in English," she continued. "One is like, 'No quiero! No quiero!' And the other is like, 'I don't wanna!' You're like, 'It's time to go to sleep,' and they're both yelling at you all these things."

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"And when they start fighting," she added, "they just look like two lads at a pub fighting over like the wrong girl too. It's like, 'Ugh!' It's just vicious. 'You guys are only two this is horrible.'"

Hear more from her exclusive interview with ET in the video below!