updated 08/19/2013 AT 4:05 PM ET
•originally published 08/19/2013 AT 4:00 PM ET
Kim Zolciak is now eating for three!
The Don’t Be Tardy star revealed on Monday that she is expecting twins.
“I was completely shocked,” she said. “I had no idea. It was a natural conception, but twins do run in the family, so I guess I shouldn’t have been surprised.”
Zolciak, who is married to Kroy Biermann, added of their big family, “I can’t believe I am going to be a mom to six children. It’s going to be very busy but it’s a dream come true.”
Just before re-Tweeting E! News’s congratulatory message, Zolciak teased on Twitter that she had a “VERY exciting and personal announcement!!!”