The Formula 1 presenter appeared on This Morning to give an emotional chat about her ordeal
The Formula 1 presenter embraced host Amanda Holden as she opened up about the traumatic experience she endured following the birth of her son Wilfred.
The 36-year-old, who is married to Owain Walbyoff, nearly burst her bladder following the birth of her little boy due to diabetes insipidus.
If it had burst the TV presenter may have lost her life.
Bravely talking about her ordeal through tears, Natalie explained how her pregnancy had been "a dream" and gave no indication of what was to come.
She said: "I didn't have any morning sickness, had loads of energy, it was just a dream."
But she then explained how she started to sense something was wrong.
She said: "I was six days overdue and I noticed he just wasn't kicking as much. I just remember saying to my mum it just doesn't feel right.
"I had invested so much to make it the perfect birth and was told not to medicate it too much and to stay at home for as long as you can, but when you know something is wrong you should stand up and be assertive."
Talking about heading into hospital, she continued: "They (doctors) had a look and they needed to break my waters."
It was at this point Natalie became emotional and took some deep breaths as she continued to relay her story, explaining how doctors were forced to perform an emergency cesarean as they found she was filled with meconium.
Natalie said: "They said we need to get him out straight away."
Fortunately, her son was delivered safely and she describes the “wonderful” moment she first heard him cry and knew everything would be OK.
Natalie explained how talking about her experiences has helped her to deal with what happened and encouraged other mums to do the same.
She said: "I really don't want to scare anyone, but don't be afraid to talk about it. That's what helped me."
Natalie also praised the doctors and nurses at Chelsea and Westminster Hospital where she was treated, describing them as "angels in human form".