After an article in the Daily Mail quoted the actress as saying she "would love to have more babies" and was holding out "the faintest hope that something may happen to me this year," the 49-year-old actress tells ET that she's not expecting to expand her brood.
On the red carpet for HBO's Golden Globes after-party on Sunday, ET's Nischelle Turner brought up the article, asking the actress, "Do you want to have more?"
"No," Kidman replied with a laugh, shaking her head.
"I would have loved to, if I would have had more kids, but I think I'm past that point now," she continued. "But I'm very thrilled with what I have -- my husband says, 'Let's just enjoy what we have!'"
Kidman and husband Keith Urban celebrated their 10th wedding anniversary just last summer. Together, they're parents to two daughters -- Sunday, 8, and Faith, 6. Kidman is also mother to two children -- Isabella, 24, and Connor, 21 -- with ex-husband Tom Cruise.
Kidman's Big Little Lies co-star, Reese Witherspoon, adorably joked that "You need to tell me first!" if she planned on having more kids. The duo was in full-on gal pal mode on Sunday, giggling over inside jokes and the night's events.
"What's even funnier is our husbands are over there, off-camera, holding our purses," Witherspoon teased.
There won't be quite so many giggles on-screen when Big Little Lies debuts on Feb. 19 on HBO. Witherspoon and Kidman play Madeline and Celeste, respectively, in the small screen adaptation of Liane Moriarty's twisty novel about a big murder in a small town.
"I don't think there's a division between television and film anymore," Witherspoon, who, along with Kidman, serves as an executive producer on the series, told ET. "There's such a beautiful blur between -- art is art and content is content... So we had a choice to make, this as a movie or a TV show. We chose together to make this an HBO show."
Earlier in the night, Kidman talked fashion with ET's Nancy O'Dell. The Lion star stunned on the red carpet in a silver sequin Alexander McQueen gown, fresh off the runway, with a feathery hem and billowy off-the-shoulder sleeves. See the interview below!