Kardashian's announcement came at the end of the episode after she had spoken to a Brennan Healing Practitioner about how she felt like she was "on the verge of a nervous breakdown" following an argument with Disick over her lack of excitement about a Ferrari he got her.
After making up with her longtime boyfriend, the eldest of the Kardashian clan broke the news while she and Disick were having a conversation inside a walk-in closet.
"I'm pregnant," she said randomly.
"What? Holy [expletive]!" he responded.
Kardashian and Disick are already parents to Mason Dash Disick born in December 2009 and Penelope Scotland Disick born in July 2012. Rumors that the couple was expecting began last week, four days ahead of the ninth season premiere of their reality show.