Divorce advice

I was married in December 2014 .sinve then wife didn't shown any interest in husband wife relationship in any way .Tried a lot to know the issue if any bt didn't tell anything except I don't beilve in all these things and the matter was taken with in laws .they came at my home and taken her back .after few days they told. there was planetary problem now she is okay so I decided to take her back in a view we will live happily bt again she did formality by coming at my home under pressure of her parents.and again didn't shown any HW relationship.we tried a lot to know the reason behind it than she told she is not interested in marriage and returned to her home.we tried to take a solution over the matter through family panchayat at her home bt she naarated that m tortuing her etc.and she also told if with them I will suicide. we came back on assurance from her family members that all will okay time is not gd nw so it's gng on.we we're stunned why she did like that.after a long delay of months I bring her back to maintain the marriage bt then only a formality was played by her in playing HW relationship ..and denied she will not do anything in future .the same drama continue for 3-4 days.she was also not interested for any conjugal relationship as well to give any child birth .this drams conitines since December 2015 ..as she is also working in psb bank.so returned back to her home after 3 days .after a gap of 7 months one of meditor tried to resolve the matter and she came back at my home in Jan 2016 for 1 month on leave .I tried to improving the relationship bt she was not at all interested even in talk with him.somehw I managed her for relationship bt she did only for formlaity. during the time she was caught using. antipregnancy pills.i again found cheating .i asked her to leave my home as every time u chaeted whenever u came with me. then she went back in Jan end 2016. in the meantime no conversation took place .bt due to few mediators they tried to convince us despite my denial to bring her back as every time she and her family made us fool that all will oki.and she got transfer to my place of posting in May 2016 .5-10 days goes fine and after few days she got preganant.and when she came to know about preganancy she seems in depression .and on pitty things she started quarrelling and left my flat in July 16 ..I tried to keep her to stay with me for the sake of unborn baby so that baby may take happily birth but she didn't get ready to live and put several allegations and quareel she left my flat and started residing on somewhere else on our place of posting..till July 2016 there is no contact with her and her family .in the means time from one of our known I heard baby got prematured dead in nov.even then they didn't inform us .(don't know whether she made the child to dead as she was not interested to birth any baby) ......and then trfd to her home place in May 2017 as per my information. we both are working in diffrent psb bank as officers.an