Kardashian, 36, confirmed the big news in a new preview for Keeping Up With the Kardashians that she and the 39-year-old rapper have made the decision to expand their family.
"I'm going to try to have one more baby," she said.
"I want my kids," North, 3, and Saint, 1, "to have siblings, but the doctors don't feel like it's safe for me," she added.
As Radar reported, Kardashian suffered difficulties during both her pregnancies, including what was a potentially dangerous delivery of her son, Saint.
For more on the couple's latest plans and family's worries, watch the new episode of KUWTK next Sunday at 9 p.m. on E!
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