Jill Duggar Dillard and her husband, Derick, revealed their baby will be a boy after their latest ultrasound at 18 weeks along.

The "19 Kids & Counting" stars prepared for the ultrasound with a breakfast of waffles, whip cream, fruit, syrup, chocolate milk and lemonade. After the ultrasound, Duggar told People magazine the baby was stretching out his legs to be "like his Dad."

"I was really excited," said Derick Dillard. "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."

The couple had made predictions about the gender of the baby and are both elated at the news.

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

The expectant couple said they won't do a theme like naming all their kids "J" names like Jill's parents but will have some theme. The future grandparents were excited as well.

"They were just elated," said Duggar. "My mom and dad both thought it was going to be a boy and my grandma did, too. They are all really excited."