Kelly Rowland is proud of her pregnancy curves! 

The singer shared a series of new workout photos on Instagram, putting her bare baby bump on display during a session with her trainer.

In the pic, the former Destiny's Child songstress is showing off her strength and balance on a Bosu ball, as she flexes her muscles in a sports bra, skin-tight leggings and Nike sneakers.

The 33-year-old recently told Us that she's been working out a lot lately. "I'm in love with boxing and yoga right now. It just feels good, it's really empowering," she said. 

Kelly announced her pregnancy news earlier this month with a cute message on her Twitter account. "I'll be stuntin like my daddy," she wrote, along with a picture of baby Air Jordan shoes. 

The pop star and hubby Tim Witherspoon secretly tied the knot last month with a small wedding in Costa Rica. 

Looks like the cute couple wasted no time starting a family -- we can't wait to see the singer's bundle of joy when he or she gets here! 

What do you think about Kelly's baby bump? Tell toofab in the comment section below and click "Launch Gallery" above to see even more expecting stars!