Advice pls!

I’m currently 17 weeks pregnant working in a government healthcare settings. Because of this pregnancy, I tend to walk or do things slower…as I get breathless and giddy easily…im anaemic btw… There a few colleagues of mine especially one male colleagues. He keep making fun of the way I walk and he even mimicked the way I walk right infront of me… Honestly I got offended. But it seems like I can’t do anything… #firstbaby #firsttimemom #advicepleace