Kroy Biermann and Kim Zolciak
03/20/2012 at 03:00 PM EDT
She has an infant
at home – and another baby on the way!
Real Housewives of Atlanta
star Kim Zolciak
is pregnant again, she announced on Twitter
Tuesday. "[Kroy Biermann] and I are happy to announce YES WE ARE PREGNANT," Zolciak writes.
The reality star, 33, welcomed her first son
, Kroy Jagger Jr., with NFL star Biermann, 26, in May 2011, and the couple tied the knot
on Nov. 11, 2011. The ceremony was captured for her new Bravo reality show
, Don't Be Tardy for the Wedding
, which is set to premiere April 26 (9 p.m.).
Zolciak has two daughters – Brielle, 15, and Ariana, 9 – from a previous relationship.
On Tuesday, she credited her girls for keeping her latest pregnancy quiet, Tweeting, "Thank you to @BrielleZolciak @arianazolciak & all our friends for keeping our pregnancy a secret u guys are the best!"
Life & Style
first broke the news of Zolciak's pregnancy.