Kim Kardashian has not let her pregnancy slow down her jet-setting lifestyle but it seems like the constant running around may be taking a toll on her- she reportedly experienced a "pregnancy scare" during her trip from Paris to Los Angeles on Tuesday.

The reality star fell ill mid-flight during her return trip home from Paris Fashion Week and was rushed to the hospital straight from the airport because she was afraid she would lose her unborn child, a source told New York Post's Page Six.

"Kim started feeling ill on the plane from Paris, and called friends as soon as she landed," the insider said. "She was rushed to her doctor Tuesday night in tears. She thought she was having a miscarriage."

Kardashian was sent home after she was cleared by her doctors. She was also told to lay off from exercising so much and to get plenty of rest.

"Kim's not respecting her pregnancy," the source revealed. "She's running around, working out seven days a week. She's working with two different trainers to control her weight, including (with) Tracy Anderson and a pregnancy trainer."

Kardashian is obsessed with working out, the source added, because of the criticism she received over her pregnancy weight gain.

"She's scared that her ass is as big as a couch and is going south," said the source. "But she is having a very rough pregnancy, and doctors have ordered her to slow down."

More than one report indicated that she experienced a "miscarriage scare" but a family insider denied the claims. The source told TMZ Kardashian was feeling "severe stomach pains" and "flu-like" symptoms, and that she became so upset she cried in front of the other flight passengers. The insider added that Kardashian has also been feeling "stressed out" about her upcoming court hearing with her estranged husband Kris Humphries. 

Kardashian announced her pregnancy with her boyfriend Kanye West in December of 2012 and it was revealed that the couple is expecting a girl in July.