Jim Bob and Michelle Duggar, best known for the overuse of a single uterus (i.e. they have 18 children and another on the way), are officially grandparents.

Eldest Duggar son, Josh, and his wife Anna welcomed their first child, Mackynzie Renee Duggar, Thursday evening.

Via US Weekly,

“Mackynzie will be in good company, considering that she has 17 aunts and uncles and another one on the way: In September, Jim Bob and Michelle Duggar announced they were expecting their 19th child in the spring.”

Josh and Anna wed in 2008 following a strict courship in which the two were allowed to hold hands but nothing more. They kissed for the first time at the alter.

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Images Via: MSNBC