Kim Kardashian has delivered a baby girl in Los Angeles.

Kim Kardashian (Bob Levey/Getty Images for Sears)

TMZ reports she gave birth a month earlier than expected at Cedars-Sinai Medical Center and both mother and child are doing fine.

Britain's Daily Mail, which first reported her as being in labor, reports the baby's father, Kanye West, is by her side in the hospital.

Earlier this week, Star magazine reported that West had cheated on Kardashian last October while he performed in Atlantic City, an allegation dismissed by both. He also announced Kim's pregnancy on stage in Atlantic City in December.