Kim Zolciak has announced she is expecting twins.

The Real Housewives of Atlanta and Don't Be Tardy star and her husband Kroy Biermann revealed in June that Zolciak is pregnant with her fifth child, however, the couple apparently has a sixth baby on the way as well.

"I'm having twins and I couldn't be more excited. I was completely shocked. 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 told E! News.

"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."

Zolciak, 35, reportedly discovered she was pregnant again after taking over a dozen at-home pregnancy tests, which was featured on the season finale of Don't Be Tardy. The couple has yet to reveal the genders of their children.

The two new babies will be Zolciak and the Atlanta Falcons defensive end's third and fourth children together, as the pair welcomed their second son Kash in August 2012 and had their first son "KJ" Kroy Jagger in June 2011.

Zolciak also has two daughters from a previous relationship, 16-year-old Brielle and 12-year-old Ariana, whom Biermann recently adopted.

"Kim loves being pregnant. She really wants a little girl," a source told Us Weekly in June, adding that Biermann is also hoping to have a daughter.

"Brielle and Ariana are older now, and Kroy wants a girl of his own."

Zolciak and Biermann tied the knot in November 2011 after getting engaged the prior month.