Kim Zolciak — Smoking While Pregnant … Again

Former “Real Housewives of Atlanta” star Kim Zolciak is playing with fire again — lighting up a cancer stick Thursday in Atlanta … WHILE 100% PREGNANT.

Zolciak revealed her 5th pregnancy this week on the season finale of her new show “Don”t Be Tardy.” She”s rumored to be roughly 4 months pregnant, and the baby bump is extremely obvious.

Translation: Kim knows she”s pregnant, and smoked anyway.

And it”s not even the first time — back in 2010 Kim was photographed smoking while pregnant with her 4th child … but insisted she didn”t know she was pregnant at the time.

Not fun facts: Research has shown smoking while pregnant carries HUGE risks such as miscarriages, premature births, low birth weight, and sudden infant death syndrome.

Calls to Kim”s rep have not been returned.