Kim Kardashian Reveals Sister Khloe was Never Really Trying to Become Pregnant [VIDEO]

Kim Kardashian has revealed the real reason her sister Khloe was unable to get pregnant: She wasn't trying.

"For so long everyone in our family was feeling really sad for Khloe thinking that she wasn't getting pregnant and everyone around her was," the new mother explained on Jimmy Kimmel Live on Thursday. "And the whole time she wasn't trying to and she was not showing up to these doctor appointments behind our back on purpose."

Big sister Kourtney even went so far as to offer to be a surrogate for Klohe, the oldest of the Kardashians revealed in an episode of "Kourtney & Kim Take Miami."

In the show, Khloe told her family members she had been trying to get pregnant since she married her now estranged husband Lamar Odom.

"About a year ago, we were both like, 'Let's just see what happens.' And then when it didn't happen, Kim was like, 'Let's go to the doctor.' And I found out I don't ovulate and now my uterus lining isn't thick enough and I have to take pills to make my uterus lining thicker. And if that doesn't get thicker, I cannot carry a baby. It's just, sometimes it just doesn't happen."

When asked about her alleged fertility issues on Good Morning America last year, Khloe said she'd always been "really open and honest about it," adding that it's important for women to be in touch with their bodies

However, according to Kim, Khloe "knew it wasn't right and she knew she wasn't ready so now we understand it. We understand her decisions and it's very clear."