"When a nurse brushed my hair, I started crying," Amanda told Good Housekeeping. "It was the most tender, loving thing after being bashed around so much.
"That's why I am so pro the NHS," added Amanda. "The people in intensive care who looked after me were incredible."
The 42-year-old, who gave birth to stillborn baby Theo in February 2011, has said that she hopes her story provide support for other parents suffering with a similar loss.
"Hopefully, someone will read this and take a bit of hope from it because there was a happy ending for me," said Amanda, who is mother to Lexi, seven, and one-year-old Hollie. "A lot of women don't have that - I was very lucky."
The Britain's Got Talent presenter also revealed that she had therapy in the months following the loss of baby Theo.
Amanda said that she and her husband spent many hours grieving together and she describes how the private couple would talk to each other at night.
Following her difficult experiences with pregnancy, Amanda suffered a miscarriage in 2010 and suffered complications when she gave birth to her daughter Hollie in 2012, the actress says she still urges women to have children.
"I tell everyone to have a baby," she said, "Forget your career - you can do it at the same time."