A mum who gave birth to another couple's child after an IVF mix-up has had a baby boy - conceived 'the old fashioned way' with her husband.
Carolyn and Sean Savage, from Sylvania, Ohio, wrote a book, 'Inconceivable', after the mix-up that resulted in Carolyn giving birth to another couple's son and ultimately handing him over to the biological parents.
Carolyn learned in 2009 she was carrying Shannon and Paul Morells' child after a fertility clinic accidentally transferred the wrong embryo to her after confusing their names.
Despite being advised to have an abortion, the Savages refused, and Carolyn served as an unplanned surrogate for the Morells, giving birth to the boy, Logan in September 2009.
She wrote: "I already felt pregnant. I was never going to deny this child life, just because it wasn't mine."
In the book, she detailed the pain of handing over the baby and her conflicting emotions about the biological parents, who she saw as the people who were 'going to take my baby away from me'.
The Morells, who have also released their own book called 'Misconception', have two older daughters.
Carolyn announced in June that she and Sean were expecting another baby. And she told of her shock about conceiving naturally after years of IVF treatment.
She wrote: "At the age of 45, after two decades without a spontaneous conception; after countless ovarian stimulation cycles, multiple intrauterine inseminations and more than five IVF attempts; after six reproductive endocrinologists threw up their arms, unable to explain why we couldn't conceive; and after one of those doctors accidentally transferred the embryos of another couple into me resulting in a pregnancy that pushed me to the limits of my sanity; I was pregnant - the old fashioned way.
"For me and many other women who suffer from infertility, that is the stuff of fairy tales."
Their fairy tale came true on Wednesday (November 12) with the arrival via Caesarean section of Nicholas Winton Savage, who weighed a healthy 7lb 1oz.
The little boy brings Carolyn and Sean Savage's brood to six. He joins two older brothers, a big sister and a set of twin girls, who were carried by a surrogate and delivered in 2011.
Earlier this week, Carolyn had explained on her blog, Mama on the Fly: Making my Way With a Half Full Cup, that the baby would be delivered at 37 and a half weeks, due to her creeping blood pressure.
She wrote: "This little guy is coming a tad earlier than anticipated and although statistically he should be fine, you know we have a history of ending up on the wrong side of statistics,' she said. 'So, could you say a little prayer for our boy?"
Proud dad Sean announced his son's arrival on Wednesday evening, writing: "Thank you for lifting our entire family in your thoughts and prayers over the past nine months,' he wrote as he posted pictures of the happy family.
"Mother and son are doing great. God is good. We are grateful."