Myself Selvi and my husband is harasded by shilpa

Hi sir/mam, we completed 12 yrs of marriage life i got kid and now im 9 month pregency.. ours is intercaste marriage im mudaliar and my hubby is brahmin. Before we were loving each other and got marriage in temple without knowing to both of family later on due to conflict in family we decided to breakup and then later on he got marriage with shilpa with force of his mother later on he couldnt survive the life with her bea use od her character and life style. Within in one month we again met each other and decided to live the life and completed MY B.E.even my mind was allowing to marry someone. Hence we decided to live our life even she was there. But both family decided to lead the lofe qith 2 wives. With forceful we 3 accept the life to lead but now she started after 12 yrs blackmailing that i commit sucide and now i am 9 month pregant and i got 10 yrs kid.. become hetic problm in our life. I dont want to make my life complicate.. every time she is maling problem after 12 yrs.