BOSTON (CBS) – It’s every parent’s worst nightmare…not making it to the hospital in time when your son or daughter is ready to come in to the world.

[Audio|titles=Minivan Delivery|artists=Doug Cope]

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Mark Nardelli, the principal of Newton’s Horace Mann Elementary School, and his wife, Christine Dardia, a teacher in Westwood, had the scare of their lives when they realized they weren’t going to make it to Newton-Wellesley Hospital in time for their third child to be born and that their mini-van was going to become a maternity ward. Nardelli says they knew he would have to deliver their baby in the front seat by the side of Route 128, alone, in the middle of the night.

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Nardelli says he gathered up a blanket and just got ready for whatever happened next.

State police and EMT’s arrived, but little Alora Grace had already been born…their third daughter.

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Baby, mother and father all did fine.