The reality star started having contractions Friday night and went into labor in the early hours of Saturday. According to TMZ, Kardashian chose to have a natural birth. TVGuide.com's emails to the couple's reps were not immediately returned.
The delivery of Kimye's daughter was a little ahead of schedule, as she was reportedly due in July.
Kardashian recently announced the sex of her baby on an episode of Keeping Up with the Kardashians. "I'm so excited we're having a girl," she said. "Who doesn't want a girl? I think they are the best. I know that'sreally what Kanye has always wanted."