The reality star welcomed son Jett Riviera last week, weighing just 5 Ibs, 2oz following an emergency caesarian in a foreign hospital.
The 35-year-old reportedly suffered from a potentially life-threatening infection which would harm her unborn child in her womb and Jett's heart rate fell worryingly low before she was forced to go into labour early.
New mum: Katie Price has given birth to a baby boy, eight weeks early after undergoing an emergency caesarian
Kieran, who she wed in March, was out shopping at the time and raced to be by her side once she'd text him to tell him the news.
But the nurses then banned him from coming into the theatre while she gave birth.
Katie added to The Sun: 'I was in a state. He's never seen me like that before. He must have thought his wife had turned into a lunatic... I was sobbing, "I love you, I love you".'
She also revealed the doctors only spoke broken English, adding to her hysteria: 'I was petrified but not one of the nurses came to hold my hand.'
On the mend: Katie has since thanked her fans on Twitter to keep them updated about the birth and her son
Trauma: Katie has revealed her nightmare birth after welcoming son Jett Riviera last week, weighing 5 lbs 2oz
She tried to halt the doctor from cutting her but he went ahead and she felt the pressure.
Jett has since been taken to a special care unit and is said to be "doing well" in the hospital but is still being monitored.
Although Price was also faced with her newborn son being whisked away from her straight away, while she pleaded with them to fetch Kieran.
She added: 'It felt so unfair because Kieran and I didn't get that moment couples should share. But more importantly I didn't even know what my baby weighed or if he was OK.'
Difficult pregnancy: The model said her fourth pregnancy has been the most difficult
It is Price's fourth child, her first with husband Kieran Hayler.
Tough time: Katie had a much better pregnancy with son Junior, from her former marriage to Peter Andre
It could be up to three weeks until he can be released from the hospital.
The model has made no secret of the fact her current pregnancy has been her most difficult yet and she has gained more weight than when she carried her previous children.
She wrote in her Sun column recently: 'I haven't got long to go now. I've got a date and I know the sex but no one knows yet - and this time I'm huge.
'I'm the biggest I've been for all of my pregnancies. I'm 11st already, whereas I was not even ten-and-a-half full-term with the others.'
As well as weight gain, Katie has also been very uncomfortable, suffering from anaemia and low platelets.
Katie and Kieran wed in front of just a few people in the Bahamas on January 16 after getting engaged after Christmas - just two months after she ended her 20 month on/off romance with Argentine model Leandro Penna.
In February, Katie announced she was pregnant with her fourth child.
Her surprise pregnancy comes after failed IVF attempts to start a family with Leandro and second ex-husband Alex Reid.
She started dating Alex just a few months after splitting from first husband Peter Andre, but left him in January 2011 after 11 months of marriage.
She also had a 20 month on/off romance and subsequent engagement with Leandro, but they never made it down the aisle.