Wife left home & not returning back home. What to do legally.

I got married in dec 2016, mine was a love marriage where we both convinced out parents so they did it in arranged way. My wife knew before the marriage that I currently do not work and pursuing my studies and income from my freelancing is pretty low however my family has a stable income. Yet she agreed to get married. Now after 4 months of marriage she left my home after a small fight in may and now not returning wven after all the requests and now staying with her parents. She is pregnant. She wants me to seperate from my parents. In there 4 months we had regular quarrels over small issues like finances and family, i did shout on her couple of times & she did the same. Now she is comply denying to return, she des not talk about divorce or anything. Its just she wants to torture me and its really affecting my work and studies both. She is not understanding how badly its going to effect our future. Looking for immediate suggestions