Kim made the confession on a recent episode of Keeping Up With The Kardashians, revealing that doctors have warned her against falling pregnant a third time as it may affect her health.
"Obviously, I do want to have my own baby, but I feel like I truly don't know if my body can handle it one more time," Kim revealed.
"There's just a lot of fears I have about surrogacy, and a lot of unanswered questions."
While Chrissy was one of the lucky ones who enjoyed her pregnancy, she has been open about her struggle to conceive in the first place, undergoing IVF to fall pregnant with Luna.
"I will say honestly, John and I are having trouble," the 30-year-old model explained on an episode of FABLife before she was pregnant.
"We would have kids five, six years ago if it'd happened. But my gosh, it's been a process! We've seen fertility doctors. And then once you open up about all those things to other people, you start learning that a lot of people in your life are seeing these people, and they have this shame about it.
“So anytime somebody asks me if I'm going to have kids, I'm like, 'One day, you're going to ask that to the wrong girl who's really struggling, and it's going to be really hurtful to them.' And I hate that. So I hate it. Stop asking me!"