Trauma During Pregnancy

I was wondering if anyone else has had to deal with traumatic situations during pregnancy, and what the best way to cope is? Recently my mothers health has plummeted, and she is unable to speak, and having hallucinations, and isn’t lucid due to a stage 3 brain tumour. In a matter of a week everything has changed. The pain is unbearable, and I’m shaking constantly on edge. I’m worried I’m causing my baby harm. Has anyone else gone through something similar, and if so how did you deal with it? Could this be hurting my baby?