"You asked for it … here is my baby bump this morning!" Zolciak captioned the photo, as she stood in her gym.
This is the fifth child for the reality star, who is already mom to daughters Brielle, 16, and Ariana, 12, from a previous relationship, along with sons Kroy, Jr., 2, and Kash, almost 1, with husband Kroy Biermann.
A source told UsWeekly, "Kim loves being pregnant. She really wants a little girl."