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05/09/2014 10:43 am ET Updated May 09, 2014

Don't Call Me Grandma: Births To "Older Moms" On The Rise

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The only time Elisabeth O’Brien, 43, truly feels like an “older mom” is when she falls into bed at 9 p.m — if she’s lucky. Don’t feel old, Ms. O’Brien. Regardless of age, most moms of 10-month-olds are exhausted by 9 at night.

Last year, at age 42, O’Brien became a first-time mom to a 7 pound, 13 ounce “ridiculously happy and healthy” baby boy named Samuel. And she also become part of a growing trend among women over age 35 who are having their first children, according to data released Friday by the National Center for Health Statistics, part of the Centers for Disease Control and Prevention.

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