Kelly Margett, 28, lay in a coma for two months and was given her last rights after she was hit by a car in Vale Road, Rhyl, when she was 15.

Her injuries were so severe doctors said it was unlikely she could ever have children but after marrying in 2005 Kelly was determined and even had a damaged kidney removed to improve her chances.

Now after 18 months of fertility treatment she and husband Liam, 30, are celebrating the birth of “miracle baby William George” who weighed in at just over 5lbs.

Kelly, of Ronalds Way, Rhyl said: “We were over the moon when we found out that I was pregnant, but I knew there would be problems and they were not sure if my body would take the pregnancy. Problems started at 24 weeks but we had a great consultant in Dr Klazinga.”

Liam said: “We are really happy and our families are so pleased for us. Williams is just perfect and he really is our little miracle.”

Kelly’s memories of the accident are still hazy. “I can’t remember how it happened. The woman wasn’t going over the speed limit. I can just remember waking up in hospital and having tubes all around me.”

Kelly’s family, who live in Arfon Grove, Rhyl, held a bedside vigil for the teenager after they were told she had a 10 per cent chance of survival. Friends gathered in hope that she would regain consciousness.

Kelly’s husband, Liam, 30, an aeronautical engineer in St Asaph, who met her a year after the accident can remember praying for her when he attended mass with his mother.

“The vicar told us that he had visited the girl on new year’s eve and she had opened her eyes for the first time.

“When Kelly told me about the accident when I met her a year later I was amazed as I remembered praying for her and now I’m married to her.”

After coming out of the coma she spent another three months in hospital and then another year in recovery before she was able to go back to school.