I know he's emotionally abusive in a sense and I've suggested counselling.
He has separated me from friends and family
so so so many red flags of a potentially dangerous situation
get counselling for yourself asap
get yourself involved with YOUR friends and family again - do not delay on this
it seems he needs counselling as well
perhaps couples counselling but focus on yourself and your children
and please, no more children until you get yourself and your current children into a stable situation
I understand that you are currently pregnant but make sure there are no more children until you are in a much better place emotionally and have a much stronger sense of self-esteem.