Singer Ciara Harris and her NFL boyfriend Russell Wilson caused a media sensation when they announced earlier that they would be abstaining from sex before marriage. So when Ciara was spotted with a rounder belly recently, a lot of people immediately jumped to the conclusion that the couple had broken their vows and that she was already pregnant.

Ciara, 29, said the rumours could not be farther from the truth. During an interview with the radio show "Russ Parr Morning Show," the singer said people are just exaggerating what they saw.

"Of course not!" she said about her rumoured pregnancy.

"You know, it's so funny, I might have had a cheeseburger a little too close to showtime. What's funny is that I've learned, after pregnancy, your body changes differently," she explained. "Listen, I can have a salad and it'll be like 'Aww junk!' (My stomach) was not that big, they exaggerated that. I'm not carrying anything in my belly but good food."

Ciara actually has a one-year-old son named Future Zahir Wilburn with fellow artist and hip-hop rapper Future. Pregnancy before marriage will not happen to her again, she said, because she and Wilson are more than committed to fulfill their vow of celibacy. However, Ciara is still very keen to have more babies with Wilson in the future.

"I definitely (want more kids), yes. (Russell and I) discuss a lot of things... a lot of good things," she earlier told PEOPLE.

She also gushed about the effect Wilson has on her life, and she loves how well the football player gets along with her son. "He is just an amazing guy. Honestly, him being in my life is really sweet. Life is pretty good, I can say that," she said.