This couple couldn't be happier. A husband and wife just learned they're about to become a family of three. But it's not the bride who's pregnant. It's her mother-in-law. The grandmother carried their child as a surrogate. Kayla was a teenager when she found out she wouldn't be able to have a baby because of a benign tumor in her uterus. InsideEdition.com's Leigh Scheps (http://twitter.com/LeighTVReporter) has more.