How to manage anxiety while pregnant?

Jodie Marie • Autistic mother-to-be

I'm 19, pregnant, and have mental illness (ptsd from domestic violence, borderline personality disorder, general anxiety disorder, autism, etc). How do other pregnant people manage this stress? I'm really feeling on edge from PTSD and my future mother in law stalking me. What's a good way to manage anxiety without too much exercise? I have a bad knee.