The model, who is still 10 weeks from her due date, was terrified when she thought her waters had broken early while she was holidaying with her family on the continent.
The mother-of-three, 35, and husband Kieran Hayler, 25, ended up rushing to the nearest hospital, where she struggled to communicate as she didn't speak the language, reports The Sun.
Stressful: Katie Price, pictured with husband Kieran Hayler in London on July 9, has been rushed to hospital on the continent
After being told the amniotic sac - a bag of fluid inside the womb - had torn, her unborn child was at risk of becoming infected by the transfer of the bacteria.
So Katie has had to remain in hospital and could give birth within the next week, doctors have warned.
A source told The Sun: 'Katie is now hooked up to drips and heart monitors in a country where she doesn't speak the language and doesn't know anyone.
'She was told she had no choice but to stay, or risk her child's life. Of course, she stayed. The doctors have told her they are doing everything they can and the baby should be OK provided they can keep Katie stable, prevent infection and delay the labour.'
Difficult pregnancy: The model said her fourth pregnancy has been the most difficult
Katie had driven to the European country for a road trip holiday with Kieran and her three children after deciding it was too risky to fly.
Tough time: Katie had a much better pregnancy with son Junior, from her former marriage to Peter Andre
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.
MailOnline has contacted Katie's representative for comment.