Is Kelly Rowland getting ready to announce another big surprise? The 33-year-old former Destiny's Child member married her boyfriend/manager in a quiet Costa Rica ceremony last month, and now rumors claim Rowland might be pregnant with her first child.

According to several sites, the rumors started over the weekend when fans noticed that the "Dirty Laundry" singer was performing at the "Rhythm On the River" music festival in a slightly baggy outfit. Rowland rocked a grey crop top with baggy high-waisted pants.

Reportedly fans thought the pants were trying to hide the first signs of a growing baby bump, International Business Times reports. Fans also noticed that Rowland was wearing a white loosely-fitted shirt while hanging out with some friends.

Last year, Rowland said that she was looking forward to becoming a mother but wasn't ready for kids yet because she felt like she was too selfish.

"I'm not ready, I'm not ready to have a child. I can be very honest," she told E! News. "Because right now, I'm a bit selfish, a lot - I was gonna say a little - but I'm still selfish."

"I like my time, I like to wake up whenever I want to and I like to come and go as I please," Rowland added. "I don't know if I'm ready to share that time with another person, I don't wanna mess them up."  

A few months ago Rowland dished on "The Queen Latifah Show" how Witherspoon popped the question, admitting that the proposal was a little unconventional.

"He put a ring on it," Rowland said. "It's been a while. We've kept it very, very low - for years, to be completely honest."

She said that Witherspoon proposed via Skype while she was in Bulgaria.

"He asked me first on Skype," she said. "And I was like, 'We're so far away from each other.'"

"But it was so late, I remember we were both just kinda like, honestly, just staring at each other," Rowland added. "And he asked me, and it was just that simple to say yes. I was like, 'I got my best friend to ride through life with.' He really is my best friend."