Kardashian, 32, is pregnant with her first child. The father is her beau, hip-hop artist Kanye West, with whom she recently bought an $11 million mansion in Bel Air, Calif. The "Keeping Up with the Kardashians" star also is in the midst of divorcing professional basketball player Kris Humphries.
The TV personality suffered a minor pregnancy scare Tuesday after arriving home in Los Angeles from a visit to Paris, UsMagazine.com said.
"All fine -- doctor-ordered rest," a friend told the entertainment news website.
"She's been working a lot, and with a divorce and the move and everything else she has going on, she just needs to take a little rest."