The 36-year-old mother of two opened up in the Keeping Up With the Kardashians' 10th anniversary special about the terrible moment doctors informed her early on in her first pregnancy that she had sadly miscarried.
After an ultrasound to check on her baby, doctors thought that there was no heartbeat, leading them to believe that the star had miscarried. They then told the devastated mother-to-be that she would need surgery.
'At one point I thought I had had a miscarriage," she said. 'I was pretty certain and even a doctor told me there was no heartbeat and said "You have had a miscarriage".'
'It was around Thanksgiving, and it was the worst Thanksgiving ever,' she admitted.
However, in a turnaround of fate, in a follow-up appointment at the doctors, Kim discovered that her daughter was still alive after the experts managed to locate her heartbeat.
'I was on the monitor and he [the doctor] was like: "There's a heartbeat!"' she explained.
Kim Kardashian is now mother to two children - her daughter, North West, who was born on the 15th June 2013, and her son, Saint West who was born on the 5th December 2015.
If reports are to be believed, then Kim and her husband Kanye West are now expecting their third child together. The baby, who will reportedly be born by surrogate, is said to be a baby girl and is due to be born early next year.
According to American celebrity gossip website TMZ, the celebrity couple have decided to have a third child via surrogacy because of the terrible medical issues that Kim has suffered during her two previous pregnancies.
Although rumours have been rife about the couple's third baby, neither star has officially confirmed the news and their family are remaining tight-lipped on the subject.