A person who is supposedly an insider said the baby is due in early May, US Weekly reported.
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Daughter Chicago, who is 11 months old, was born via surrogate last January.
The new baby will join Chicago, as well as North, 5, and Saint, 3.
Related: Photos: Kim Kardashian and Kanye West through the years
Last week, the West/Kardashian family posted photos for Christmas showing them all at an extended family party, People magazine reported.
Credit: Rich Fury/Forum Photos via Getty Images
Credit: Rich Fury/Forum Photos via Getty Images
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