Dealing with Fat Shaming

Hey everyone, i believe i've made a post on here when i was earlier on but now i'm 8 months and everyone that interacts with me, even family, are always like:

"how are you feeling? how far along are you?"

and i respond ...

"oh.... that makes sense .." and walks away while side eyeing me and murmuring something to someone.

In my mind, I know that's them subtlety fat shaming me or having some sort of opinion about me being pregnant. How do I deal with stuff like this?