Which Reality Star Bared Her Big Baby Belly in This Flashback Pic? (PHOTOS)

Kim Zolciak tweeted this bump-alicious photo yesterday, writing, “#throwbackthursday pregnant with Kash had him a few days later!!!!!!”

Baby Kash — who is now 4 months old — also has an older brother, KJ, 15 months, and older sisters Brielle, 15, and Ariana 9. Honestly, we’re just in awe that Kim looks that good after four kids. Tell us your secrets, Kimmie!

Did you guess that Kim was the owner of the baby bump? Tell us below!