Ellen DeGeneres appeared to accidentally let slip that another Kardashian was pregnant during her interview with pal Kris Jenner.
It comes amid fan speculation that Kourtney, 42, is expecting a baby with fiance Travis Barker.
Host Ellen, 64, made the remark while chatting to Kris, 66, on her talk show on Thursday as the momager gushed about daughter Kylie's birth.
Kylie, 24, gave birth to her second child with partner Travis Scott, 30, on February 2nd by sharing an adorable photo of what appeared to be four-year-old Stormi holding her younger brother's hand.
Kris revealed that she had been at the birth of her grandson Wolf, branding it "amazing" and said that she was shocked at how much he looked like his older sister Stormi.
Ellen went on to quiz Kris about which of her other children could be next to give her a 12th grandchild.
Kris replied: "I think it would be nice if it was Kendall, right? She’s the only one who hasn’t had a baby.”
Questioned on whether Kendall, 26, wants to have a baby, Kris replied: "I think she would eventually love to have a baby."
Ellen went on to suggest that another of Kris' children was already pregnant as she said: "I think she’s not gonna be the 12th though.
“I think there’s gonna be one before she’s gonna have one.”
Kris went on to ask Ellen who she thought it was, prompting the host to reply: "I know who it is."
During the interview, Kris also opened up about seeing her 11th grandchild for the first time.
"He's so cute," she gushed. "It's amazing I was in the hospital when he was born. It was me, Kylie, and Travis.
"Because they have rules and regulations now so you can only have so many people.
"Back in the day I had like 15 people when I was giving birth it was like a party, but now it's very controlled.
"And when he came out, it was like 'there's Stormi being born all over again.'"
Ellen quizzed her: "He looks like Stormi?"
"Exactly," Kris replied.
The host pointed out that the children's birthdays were a day apart, to which Kris replied that was correct.
Ellen exclaimed: "That's crazy! That was clearly not planned?"
"No, but he got the best birthdate, it was 2/2/22," she replied. "That's an angel number.
"2-2-2-2 has always been Kylie's angel number, and a friend of hers got her a necklace with that number, and she was wearing it when she gave birth.
"It was so weird because she's had the necklace for like five years."
