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/ Source: TODAY
By Erin Clements

Josh and Anna Duggar are expecting the latest addition to their growing brood this summer, and now they know the sex of their fourth child.

The "19 Kids and Counting" stars are having...a baby girl!

The couple made the announcement exclusively to People. "Josh thought it was a boy, I thought it was a girl," Anna, 26, told the magazine of the newest member of their gender-balanced family, which also includes Mackynzie, 5, Michael, 3, and Marcus, 1.

Anna, Marcus, Mackynzie, Michael and Josh Duggar enjoy some sweet treats.TLC

The couple announced their pregnancy via Twitter in December.

Josh, 26, is the oldest child of Jim Bob and Michelle Duggar, and he and Anna have adopted his parents' custom of giving all of their offspring the same first initial. Josh and Anna's kids all have "M" names, while his own 18 siblings follow a "J" theme.

"We are close to announcing a name, but haven't yet," Josh added to People. "We are likely going down the same path, but we'll just have to see."

The couple's forthcoming daughter will be the fifth grandchild for Jim Bob and Michelle; Josh's younger sister Jill is expecting a baby boy later this month.