coustdy help needed

I was in a abusive realitionship with my baby daddy i left because it got really bad i thoug he would try to kill me if i did not leave he had always told me if i tryed to leave with the kids he would kill me we stayed together for a wile but after so much abuse it was just getting worse so i thought it would be best for my kids if i left by myself so i left tryed to stay in contact buthe would not let me have anything to do with my childern then he went to prison and his mom got my kids she tells me they terminatd my rights i have not seen my kids because of them and have no way to hire a lawyer i despratly need help please