Kim Kardashian gave birth to her first child on Saturday - a month ahead of her due date.
Mail Online exclusively revealed that the 32-year-old had been admitted to hospital in Beverly Hills on Friday.
The reality star had taken out a birthing suite at Cedars-Sinai Medical Center - a hospital of choice among many celebrities including Britney Spears, Victoria Beckham and Jessica Simpson.
Hours later - around 1:30 a.m. on Saturday - she gave birth to her baby girl.
Her partner, rapper Kanye West, and mother Kris Jenner were reportedly at her side.
TMZ cited sources that she had a natural birth after having contractions late Friday evening.
Kim had planned to have a C-section but after suffering an infection had decided to take the precaution of going to the hospital a few weeks early, according to X17Online.
Her due date was reportedly July 11 - the same day as Kate Middleton.
Both mother and baby are in good health and resting, but given the early birthday, the littlest Kardashian has been placed in an incubator.
No further details have been released and the couple have not given any hint at what they will name their daughter.
The couple announced the pregnancy in December.
Kardashian has been married twice before - to musician Damon Thomas in her 20s andmost recently to basketball player Kris Humphries.
On Friday night West skipped out on a listening party for his latest album in Los Angeles, prompting speculation the baby was on its way.
Several of Kim's close friends, including Scott Disick and Jonathan Cheban both attended the party.
Sources close to the couple later confirmed to Mail Online that she had been hospitalized.
It's been a stressful week for the pair as rumours circulated that he cheated on her with a Canadian model after they met at one of his shows, though spokespeople for both Kim and Kanye vigorously deny the claims.
The 36-year-old rapper, who celebrated his birthday on June 8, was last spotted at the Yeezus listening party in Switzerland Tuesday.
He's been heavily active in promoting his new album, due out on Tuesday, and fans wondered whether he was referring to his post-Kardashian lifestyle in the lyrics to his track, New Slave.
West raps: 'I’ll move my family out the country/So you can’t see where I stay/So go and grab the reporters/So I can smash his recorders.'
Asked for this 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.'
He continued: 'Well, I just don't want to talk to America about my family. Like, this is my baby. This isn't America's Baby.'
Kim was last seen out and about on Wednesday in a baby bump-hugging green Top Shop dress having lunch at Casa Vega with her friend Jonathan Cheban.
On Friday her mother Kris Jenner was spotted visiting her pregnant daughter's Los Angeles mansion, possibly ready to get a head start with the packing.
Jonathan popped by the house hours later and was spotted transporting a Louis Vuitton bag from the house and into the back of a private car.
The birth of the couple's first child comes just weeks after Kim celebrated her pregnancy in a star-studded baby shower at the home of a family friend in Beverly Hills.
More than 50 guests sat amongst tens of thousands of dollars of flowers in a series of private garden marquees erected especially for the occasion.
With the shower themed in the color pink, to coincide with the sex of the baby, which was revealed on the premiere episode of the eighth season of the family's reality show.
Kanye also attended the bash arriving later and shielding his face with a hoodie.
In the season premiere of season eight of her reality show Keeping Up With The Kardashians, Kim revealed that she was having a baby girl, showing Kim discovering the news during an sonogram.
Dr Paul Crane, the family's doctor, laughed as he found Kim and her sisters Kourtney and Khloe, and their mother Kris Jenner all in the office excitedly waiting together.
'I don't see any pee-pees,' Dr Crane said as he tried to determine the gender, adding: 'I'm thinking it's a girl.'
'Oh my gosh! What's the percentage?' a nervous Kim was heard asking the doctor.
After being told that she was 99 per cent having a baby girl, Kim gushed: 'I am so excited to be having a girl, who doesn't want a girl.'
Kim then added that it was what her boyfriend Kanye West, who is not in attendance, 'always wanted' noting that he would be thrilled at the revelation of their baby's sex.
Kim said: 'I know that's really what Kanye has always wanted. He wanted a little girl.'
She also shocked viewers when she told her doctor that she hopes to eat the placenta after the birth.
'Don’t you think it makes you look younger? I really want to do it,' Kim said, much to the horror of her mother Kris Jenner.
Kim would not be the first celebrity mother to eat her placenta for its nutritious benefits.
As well as reportedly helping you 'appear youthful', Chinese herbalists among others believe that re-ingesting the protective layer that connects the baby to the wall of the uterus is a great way to nourish the body following childbirth.
The placenta contains high levels of oxytocin, and as hormone levels drop after giving birth, is believed to be a good way to replace them, which can prevent postpartum depression.