Fraud, physical sexual abuse,falls pretext of marriage

My bf cheated on me, we are in relationship since 6 yrs... He has been misguiding me about marriage from years. He made me pregnant twice and done my abortion.. The 2nd abortion was a forceful one i was not ready for that but he abused me misbehaved me then threatened to leave me ,and then after emotional blackmail did my abortion.. I m physically emotionally and mentally destroyed now. These physical and mental stress is making my condition worse.. after his need is done he left talking to me now and not responding me. He is abusing , threatening and even provoking and telling me to die. And told many times that no issue i will prefer to go jail u do something He Since many years he is putting different excuses for marriage.. He is responsible for my present health conditions and stress. Kindly suggest me what can i do