Olivia Munn, John Mulaney Secretly Welcome Baby Boy: Report

Olivia Munn and John Mulaney are officially new parents.

Munn, 41, and Mulaney, 39, welcomed a baby boy in Los Angeles on Nov. 24, the day before Thanksgiving, TMZ reported, citing unnamed sources "with direct knowledge" of the matter.

The couple has yet to confirm that they have welcomed a child. No other details have been revealed, including the baby boy's name and date of birth.

The baby is Mulaney and Munn's first child. The couple started dating earlier this year, shortly after the comedian announced his divorce from ex-wife Anna Marie Tendler.

The former "Saturday Night Live" writer confirmed the "X-Men: Apocalypse" star's pregnancy when he appeared on "Late Night With Seth Meyers" in September.

"I got into this relationship that's been really beautiful with someone incredible. And we're having a baby together. I was nervous when I was about to say the news!" Mulaney said.

His announcement came days after Munn was photographed with a baby bump while running errands. At that point, neither of the two had publicly confirmed the romance yet.

The "Predator" actress recently admitted that she and the stand-up comedian were "scared" to become new parents but that social media has been helpful when it comes to things they needed to prepare ahead of their child's arrival.

"We talk about the same stuff. Which rocker? What type of crib do you put the baby in? What does the baby wear?" she said on the "Today" show last month. "Honestly, thank God for Instagram and Facebook and blogs because there’s a lot of moms who put out such great information, and that’s been a saving grace for me."

Munn and Mulaney first sparked dating rumors in May and were photographed in public together for the first time the following month. They appeared in good spirits while having lunch.

However, some fans and social media users later questioned the timeline of Mulaney's romance with Munn as news of their romance broke shortly after it was announced that he and Tendler were separating.

During his interview with Seth Meyers, Mulaney said that he entered rehab in September last year, got out a month later and then moved out of the home he shared with Tendler shortly after. According to the comedian, he relapsed on drugs not long after hosting "Saturday Night Live" on Halloween last year and returned to rehab, finishing his two-month treatment in February.

Mulaney then explained that he moved to Los Angeles in the spring, now sober, "and met and started to date a wonderful woman named Olivia," before revealing that he and Munn are expecting a child together.

Munn later addressed the various rumors surrounding her relationship with Mulaney, telling the Los Angeles Times that people speculate about their relationship "incorrectly."

"They think they know our relationship so well. When in reality, they don't. There’s no way anyone could know what any of his relationships were or what our relationship is," the actress said in November.