FLUFF: One of the Kardashian sisters is pregnant.

by Mamamia Fluff June 9, 2014

We’ll give you a clue. The lucky sister’s name starts with a ‘K’.

Yeah, for a weird and beautiful moment there, we thought it was Kim too. But no, North West isn’t getting a sibling just yet.

It’s 35-year-old Kourtney who’s expecting.

Kourtney Kardashian and Scott Disick.

Multiple sources are reporting the 35-year-old Kardashian sister is expecting a baby.

In an episode of Keeping up with the Kardashians airing this weekend, viewers will be able to watch Kourtney tell her partner Scott, “I’m pregnant” – and see his reaction.

A source reportedly told PEOPLE magazine, “She’s really excited but she’s nervous too … Three kids is a lot to handle! But she’s happy — she’s always wanted a big family with Scott.”

Kourtney and her partner Scott Disick already have two children together – four-year-old Mason and one-year-old Penelope.