Credit: Photo via Twitter Photo: Kim and Kroy Have "Big News"

Usually, our Real Housewives of Atlanta like to spill their every thought and bit of good news on Twitter, but Kim Zolciak's latest post left us in a state of suspense. What could she be talking about?

The mama of four shared, "today is a big day for our family! can't wait to tell you guys!!!!!" The happy message was accompanied by the above picture of Kroy and, we must say, a very young-looking Kim, sitting in a car. Both look super content.

Was it moving day for the Zolciak-Biermann's? Did Kroy finally adopt Kim’s girls? Is another baby Biermann on the way? Share your theories in the comments below!