The 43-year-old and his wife Emma admitted they didn't even know she was pregnant before she was rushed in for emergency surgery following the horrifying incident last September.
'They told me Emma would've died if it had been left for a few more hours', Simon told OK! magazine. 'She was literally two hours away from death.'
And Emma, who put her stomach pain down to constipation, confessed that she feared she would never see her sons, Alfie, 10, Harry, eight, and Henry Teddy, two, again.
'As they were taking me down to theatre I just kept thinking, 'I'm going to die - this is it, I'm not going to make it,' she said.
'As they were prepping me for surgery I had to keep signing lots of forms. I just felt devastated and so overwhelmed. It was the most frightening time I've ever had.
'I was petrified. I thought I was never going to see my sons ever again.'
Simon has now revealed plans for a vasectomy to rule out any future children following Emma's near death experience.
'I think as Emma has come so close to death, that's it for us.' Simon said. 'We originally thought Emma couldn't carry girls, but she so desperately wanted a little girl.
'I would love her to have one - but now, after nearly losing her; I'm going in and having the snip.'
And Emma, who has endured 12 devastating miscarriages, confessed she would not be able to cope with the strain of another pregnancy.
She said: 'Every time I found out I was pregnant, I never felt joyous. I would just fear the worst. I don't think my mind or body could do it anymore.'