Kris Jenner Reveals She Found Out About Kourtney's Pregnancy Announcement on TV: 'Thought I Was Being Punk'd'

Jenner wasn't in on the LA announcement from the couple, she reveals in a teaser for next week's episode

Kris Jenner found out about Kourtney Kardashian Barker's pregnancy announcement with the rest of the world.

Kourtney's reveal was on the latest episode of The Kardashians, with the momager, 68, sharing that she wasn't in on the plan in the teaser for the season finale, which airs next week.

When producers ask Khloé Kardashian and Kris what they thought of the reveal, the Good American co-founder, 39, explains, "She found out on the news, my mom. She wasn't very happy."

"She forgot she had a family," Kris said, as it segues into Kourtney giving her mom a 24-hour notice of her sex reveal party.

"That's so Kourtney," she responds, clearly unenthused.

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Related: Kim Kardashian Says Kourtney Is Her Go-To for 'Mom Advice' as They Open Up About Being Compared to Kids' Dads

According to a birth certificate obtained by PEOPLE, the Lemme co-founder, 44, and the Blink-182 drummer, 47, have named their son Rocky Thirteen Barker. The news was first reported by The Blast. The couple's son was born on Wednesday, Nov. 1, at a hospital in Los Angeles.

Kardashian Barker is already mom to daughter Penelope Scotland, 11, plus sons Reign Aston, 8, and Mason Dash, 13, with ex Scott Disick.

Barker shares daughter Alabama Luella and son Landon, 19, plus stepdaughter Atiana De La Hoya, 24, with his ex-wife Shanna Moakler.

The couple threw a Disneyland-themed baby shower for their baby on the way, which was adorned with Disney delights at every turn. One photo shared, however, quickly began making the rounds on social media, showing that one of the decorations at the party was an apple tree, with a sign that read "Wishing Tree. The apple can be seen as a symbol of knowledge. Share your wishes and advice for Baby Barker!"

Guests were able to write messages to baby Barker and hang them from the tree when they were done. Fans zoomed in on a few pictures from the Wishing Tree and were able to read some of the messages, including one that seemed to reveal baby Barker's name.

Although the note could only partially be read, it appeared to say, "May Baby Rocky have the most ... life filled with love, happiness...," perhaps revealing that the couple's son would be named Rocky Barker.

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