Congratulations are in order for Chris Pratt and Katherine Schwarzenegger, who have reportedly welcomed their very first child into the world.

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The news was confirmed by People, after a source close to the couple revealed to the publication that the 30-year-old author had given birth.

Pratt's brother, Patrick, also confirmed the news in a video shared by Entertainment Tonight on Sunday.

You can check out that video below:

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"They're doing great - just got her a little gift," Patrick said, while flashing a glimpse of a little box wrapped with a pink bow.

Patrick, who was spotted leaving a market in Santa Barbara, California, also gave a thumbs up when congratulated on becoming an uncle, and said that Katherine, 30, and Chris, 41, were "doing great".

The newborn is the Marvel star's second child, with Pratt already sharing a son - eight-year-old Jack - with ex-wife Anna Faris.

The couple spoke openly about their pregnancy experience in lockdown while appearing in an Instagram Live chat with Dr. Zelana Montminy back in June.

Speaking about how the pandemic has effected their time together, Schwarzenegger said: "I'm really lucky to be living in very close proximity to my family, which has been very helpful.

She also added that Pratt was a "very wonderful husband", adding:

"It's been amazing having him home and also very understanding about my need to sanitize everything, having everyone wear masks all the time. That's been helpful."

Chris Pratt and Katherine Schwarzenegger 'welcome their first child', actor's brother confirms