Working

So i have a pretty rude boss im afraid she will have me come in and find someone to cover my shift when i go into labor i dont know what to do and recently she has become a little physical with me as in snatching things from my head and being increasingly rude im not sure what to do i need my job but not that much my SO has a good enough job to support us but i just dont like to see him over work himself im currently 36weeks so i could realistically have our son anytime.