Audrina Patridge Still Not Pregnant ... Here's Proof

3/23/2012 12:00 PM PDT

Audrina Patridge -- Still Not Pregnant ... Here's Proof

It seems reality stars are getting knocked up left and right these days ... Snooki, Jessica Simpson, Kristin Cavallari, etc. ... but not Audrina Patridge ... at least judging from the way she looks in her bikini.

Congratulations.