Kelly Rowland
Kelly Rowland is expecting a baby boy! Reuters

Its a boy for Kelly Rowland!

The 33-year-old singer, who is married to her manager, Tim Witherspoon, accidentally revealed the gender of their unborn baby while discussing all the gifts their family members have already purchased for the tot.

Asked about her pregnancy, the Dilemma hitmaker told FOX411: "We're very excited. So far, everything has been good. I just feel like the baby is already spoiled rotten-like literally, my Caress family has gotten him all of his little bathing stuff, his toys. It's just so cool."

The former Destiny's Child singer immediately realised her blunder and said: "It, it', f**k it! It's a boy. It's a boy!"

She then asked her publicist to contact her husband and said: "Can you please tell him that I spilled the beans?"

It seems the singer was desperate to keep the news a secret, as she caressed her baby bump and said: "I'm sorry, baby."

Kelly first sparked rumours she's expecting a boy when she was spotted browsing for blue baby clothes at a children's supply store Juvenile Shop in Sherman Oaks, California, earlier this month.

An eye-witness at the time revealed that Kelly was cooing over the tiny clothing and reportedly said: "Oh my god, this is so little ... this is so cute!"

Unplanned Pregnancy?

The singer admitted that her pregnancy wasn't planned.

The Motivation hitmaker was initially shocked to discover the news, but has already chosen a name for their son.

She said: "It was a surprise; I can definitely tell you that. It was a great surprise!"

"The dad picked out the name. It has to do with family," Kelly added.

The singer previously praised Tim for being "super supportive" during her pregnancy.

She said: "He's so hands on and I'm just so blessed.

"I just love him, he's like the greatest guy ever. He's so awesome I just can't believe how blessed I am and he is too! He's an amazing man."

Kelly is really enjoying her pregnancy, but is struggling to adjust to her new curves.

She said: "I had no morning sickness. I feel great.The most shocking thing about pregnancy to me is probably the way your body changes -- nobody can prepare you for that. Not a book, not anything. You just go through it."

The singer posted a pic of herself, showing off her baby bump on Instagram.

The star is sticking to a healthy diet, but is also giving into some of her cravings.

She told People Magazine : "I love sandwiches right now. I'm reading these different books and they're telling me what food is really great for the baby, to grow their nervous system, and their brain food and all that, so I've been trying to stay on that."

Asked what she's most looking forward to about motherhood, she said: "When I see the baby's face. That's it."