The couple will become parents for the second time as the Keeping Up With the Kardashians star announced the news in a teaser for the reality show.
“I just got the blood test back, and I am pregnant,” Kardashian, 34, tells Khloé.
Last month, the reality star spoke to E! News about her and West’s struggle to conceive another baby.
“We are trying. We try every single day. You can’t try harder than we try,” she said. “It’s getting exhausting. He always says, ‘Trying for baby No. 2 isn’t as fun as trying to baby No. 1.'”
Kim and Kanye, who are already parents to daughter North, 23-month-old, tied the knot on May 24, 2014, in Florence.