At the risk of repeating a horror story, a lady I met some weeks ago told me about her stillbirthat 42 weeks. She didn't want an induction, was being scanned and checked regularly and finally went into labour. The result was a stillbirth after a very lengthy labour. Baby had been fine on the scan a day earlier. Such a terrible story, I don't know that it was anything to do with the length of the pregnancy.
She went on to have another baby 18 months later, and was induced at 38 weeks.