Pregnant wife left husband

Its been 7 years to our marriage we are not having any child. I have spent more than 5 lacs in her treatment. 2 months ago we again did her IVF which was successful and she is 2 months pregnant with healthy pregnancy. Since last 1 month she was quarrelling with me in tiny issues but I was not bothering about it as it could be due to hormonal changes. 2 days ago she went in bathroom for shower in the morning and forgot to lock it from inside, my younger brother by mistake opened the door. She created big issue about it why he opened the door? She also accused why brother comes in room while she is resting to take hair oil etc? She started yelling and abused my brother and parents further, even all our neighbours gathered at our home. We have not hit her in any way. After this drama my father called her brother in the evening and asked him to come and take her sister at his home. He came around 12am took, torn her own shirt and called police by dialing 100. We all went to police station there she denied to file FIR. After that she left with her brother. I am worried about my wife as its assisted pregnancy, not a natural one without medication support the pregnancy will not sustain and bleeding will start. I am also afraid if they can terminate the pregnancy. Yesterday I sent my friend to her brothers home to just give medicines but he refused to take it. Why are the options for me? I want her back. I called her but she is not picking up my call. I called her aunt and explained about medicines but she told me that they only want to divorce now. In the past also she has left me many times due to vague reasons but she used to come back after some time.