A woman given the cancer all-clear was told the devastating news she has an incurable cervical tumour.
Carrie-Anne Taitt, 30, from Gloucester, had a nodule on her cervix following the birth of her second child in February 2017.
But after a smear test, she received a letter saying she was negative.
Carrie-Anne went on to experience months of bleeding and was eventually referred to a specialist who confirmed in May 2019 she did have cervical cancer after all.
After treatment during the second half of 2018, she was told in January her illness is incurable.
Carrie-Anne, who is married to Michael, 33, a manager of a gym, has two children Millie and Leo, said: "Nothing can prepare for when you are told you have cancer. It turned our lives upside down.
"My diagnosis and gruelling treatment regime has had a massive impact on us as a family. I spent both my 29th and 30th birthdays in hospital and had to miss Leo's birthday last year for the same reason.
"I spent nearly seven weeks in hospital last year and I didn't get to see my children during this time which was heart-breaking."
Carrie-Anne has now instructed a legal expert to review the care she received and is also visiting schools in her area to raise awareness of the illness.
Christopher Hurlston, specialist medical negligence lawyer at Irwin Mitchell, is investigating her case.
He said: "Carrie-Anne's story is sadly yet another devastating reminder of how cancer can affect people of all ages.
"She has a number of concerns about the care she received which we are investigating.
"Despite this and the uncertain future she faces, Carrie-Anne continues to show tremendous courage in her battle against the disease and her determination to help others is hugely inspirational."
She is now visiting schools in her area to share her story in a bid to raise awareness of the dangers of not attending regular screenings.
She added: "Despite my cancer, I'm determined to make a difference in any way that I can and doing these talks has given me a real sense of purpose.
"The importance of this issue cannot be overstated and I want to do everything I can to spread the message when it comes to both screening and the symptoms."
The Mirror has contact the NHS for comment.
Cervical Cancer Prevention Week runs from 20-26 January. For more information visit www.jostrust.org.uk/