Kim Kardashian has gone into labour.

The heavily pregnant 'Keeping Up with the Kardashians' star reportedly checked into the birthing suite at Cedars-Sinai Medical Center in Beverly Hills this morning (15.06.13) with her boyfriend Kanye West by her side.

The rapper skipped a listening party for his new album last night amid rumours Kim was having contractions.

The 36-year-old star reportedly disappointed some of his biggest fans by not showing up to a party at Milk Studios in Los Angeles on Friday night, where he was scheduled to preview tracks from his new album 'Yeezus', which leaked online before its official release next Tuesday (18.06.13).

Sources told gossip website that a rumour quickly swept through the event that the reason the 'New Slaves' hitmaker was a no-show was because his reality TV star girlfriend was going into labour.

The reports have yet to be confirmed but several of Kim's close friends including Scott Disick and Jonathan Cheban both attended the party.

The 32-year-old beauty, who has been noticeably absent on social media today, previously revealed that she was due to give birth to a baby girl in early July.

Kanye recently admitted that he plans to do everything in his power to protect the privacy of his daughter.

Asked for his thoughts on parenthood, he said: ''One of the things was just to be protective, that I would do anything to protect my child or my child's mother ... [But I haven't] fully developed those thoughts yet. I don't have a kid yet.

''Well, I just don't want to talk to America about my family. Like, this is my baby. This isn't America's baby.''