Amanda and Billy Prentice had been trying to conceive for four years, before a doctor told them about the good news.
However, the news only lasted five hours before Amanda Prentice gave birth to a baby girl.
Mrs Prentice began suffering from seizures a few days before giving birth, and was rushed to Vanderbilt Hospital. She was unconscious for two days, before she woke up to the news that her illness was brought on from her pregnancy.
However, she informed the doctor that she had no idea that she was pregnant, as she had not suffered from any symptoms.
"I never felt [the baby] move. I wore the same clothes that I had worn for two years," she told WSMV.
Allie McKinley Rose was born healthy and weighed at 5lbs, 5oz.
She added: "We had talked about adopting, and now we've got our miracle baby."
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