Pregnant Kim Zolciak: I'm Having a Boy!

Kim Zolciak and Kroy Biermann arrive at NBC Universal Summer Press Day on April 18, 2012 in Pasadena, California. Credit: Gregg DeGuire/

Kim Zolciak's going to have another future football player on her hands!

Expecting her second child with husband of six months, Atlanta Falcons NFL player Kroy Biermann, the Real Housewives of Atlanta star confirmed via Twitter Wednesday that she's having a boy.

"[Kroy] and I are soooo excited we are having another BOY!!!" Zolciak, 33, tweeted. "KJ will have a best friend for life!! Thank u 4 all the Congrats!"

Confirming her fourth pregnancy in March, just 10 months after welcoming baby Kroy, Jr. ("KJ"), Zolciak married Biermann on November 11, 2011.

The reality star also has two older daughters -- Brielle, 15, and Ariana, 9 -- from previous relationships.