A Keeping Up With The Kardashians insider told the publication, 'Kim is completely overwhelmed right now and she does not know how she is going to fit this third child into her busy schedule.'
The source also revealed to Radar that Kanye, 40, 'isn't holding up his end of the bargain'.
Khloe is pregnant with her first child with NBA player Tristan Thompson, and Kylie is reportedly pregnant with her first child with rapper beau Travis Scott.
The source has revealed to Radar that Kim is feeling 'overshadowed' by her siblings impending bundles of joy.
'Kim hates that she has to share the pregnancy spotlight with her sisters because they are getting all of the attention,' the source claims. 'She can't stand it!'