Kim Zolciak of "The Real Housewives of Atlanta" is expecting her second child with football player Kroy Biermann, the reality star confirmed on Twitter.
"[Kroy Biermann] and I are happy to announce YES WE ARE PREGNANT!" the reality star wrote on her official Twitter account on March 20.
The couple welcomed their first child, son Kroy Jagger Biermann on May 31, 2011. Zolciak also has two daughters from a previous marriage - Brielle, 15, and Ariana, 9.
"Kroy and I are so excited," Zolciak told Life & Style magazine. "To decide we wanted to get pregnant again and have it happen so quickly was such a blessing... I'm so excited that KJ will have a little buddy."
Zolciak is four months pregnant, but she told the tabloid that she has managed to keep it a secret, "People are going to be shocked, because nobody knows."
Biermann, 26, who is a defensive end for the Atlanta Falcons and the 33-year-old reality star got married on November 11, 2011 in Atlanta. The ceremony was filmed for Zolciak's new Bravo reality series, "Don't Be Tardy for the Wedding," which is slated to premiere on April 26 at 9 p.m. ET.
Zolciak has been linked to Biermann since the summer of 2010, when they met during a charity auction, which was featured on "The Real Housewives of Atlanta."
Zolciak gushed about Biermann on her blog, saying: "I'm in such a happy place with him. I was so happy Bravo caught the moment we met, I will always have that footage and not too many people can say that."
In December 2010, the reality star denied reports that she was engaged to Biermann.
"I really want 2 know the 'confirmed source' that has seen the ring that Kroy 'supposedly' gave me," Zolciak wrote on her Twitter page. "I am dying to know what it looks like IDIOT."
Zolciak rose to fame on "The Real Housewives of Atlanta" and in 2009, released her debut single, "Tardy for the Party."