Jill Duggar Dillard, second-eldest daughter of the reality-TV clan from TLC’s “19 Kids and Counting” and the spinoff “Counting On,” is expecting her second child with husband Derick Dillard.

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“We are so excited to be expecting Dillard baby #2!” the couple told People magazine Tuesday, adding that their 20-month-old son Israel “has been such a delight to us that we know a second sweet baby will only continue to add joy to our family.”

The Dillards, who married in June 2014, returned home to Arkansas in August after spending 10 months as missionaries in Central America.