The big reveal is finally here! Jill Duggar is having a…

BOY!

The 18-week pregnant star of TLC’s 19 Kids and Counting and husband Derick Dillard announced the gender of baby “Dilly” on Tuesday.

“I was really excited,” Derick told People. “As a new dad, to have a firstborn son to be our first child and be the leader of his siblings, it is very special.”

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Jill underwent the ultrasound last Saturday, joined by Joy, James and Jenny Duggar, all of which had predictions for the baby’s gender.

“Oh yes, there was some screaming in the room,” Jill told People. “I thought all along we were having a girl. Everyone made their guesses.”

The couple also announced the baby is healthy. “I was praying for a big, healthy baby,” Derick said. “And just healthy, healthy,” Jill said.

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And apparently the baby is one big one!

“He stretched out his legs full length,” Jill said. “He was trying to be like Dad.”

“We could have a giant,” she added. “I called Derick’s mom and she was telling me that when Derick was born, he didn’t fit into the newborn clothes and his shoes were a size two.”

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The couple also revealed their plans for naming the baby, which will not follow in the footsteps of the Duggar family, all who have names beginning with “J.”

“We are not going to do a letter theme,” Jill said. “But we may do some kind of theme, like family names.”

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