Dealing with stress... 😦😔

Sasha • Mommy of 3 amazing little boys ages 1,6 & 7... 6 weeks and counting 😊
Ill be 32 weeks Monday and just stressed to the max! My 2 boys and I moved back in with my parents at the beginning of my pregnancy due to me having HG really bad and needing the help. Since they already had two extra rooms it wasn't really a problem. They don't provide for us in any way, besides us staying here I handle everything for myself and my boys. My stepdad literally has an attitude EVERY single day, has been this way for many many years which causes friction in the house. I was told a few weeks ago that my baby boy was very small for his gestational age and doc says it could be stress. I'm no longer working and have become so worried that being here another 2 months is gonna be harmful to me and babys help but I have no other options. What can I do to help deal with the stress? Ive already been told baby may have to come early if he doesn't grow by 11/11 I'm not due until 12/21...