Kelly Clarkson has already made it known that she wants to have kids. And on Monday's episode of The Tonight Show with Jay Leno, she hinted that she just might be pregnant.

The American Idol Season 1 winner who wed Brandon Blackstock last month, said she's been trying to her pregnant.

"Are you pregnant right now?" Leno asked.

Clarkson laughed and replied, "What are you saying?"

"I always get this stars that come and go, 'I'm thinking about having a baby,' and then the next week they go on Ellen and announce it there," Leno explained. "So, I'm asking you, are you pregnant? Remember, you are under oath!"

Clarkson then said, "We are not announcing anything right now. We're not, no!" She did reveal that she and Blackstock are having sex "like rabbits."

Blackstock already has two kids--Savannah, 11, and Seth, 7 from a previous marriage and although Clarkson admitted she never wanted children, her mindset has changed.

"They're so great," she said. "Now I want, like, five."

The singer also revealed why she and Blackstock decided to get married during a smaller ceremony last month at Blackberry Farm in Walland, Tenn.

"We were gonna do the big thing. You can ask everybody I grew up with, I've never been the girl that wanted a big wedding. We kind of just started doing it for other people," she recalled. "And then I was like, 'You know what? My whole career, I do a lot of stuff for other people.' I'm like, 'This should be my day.' And he's already been married once before, so I got to pick everything."

Tags: Kelly Clarkson Pregnant Jay Leno Brandon Blackstock