To Maintenance Of Two Children

My husband died in last year at 35 years of age. We had two children aged 6 and 2 years. when he died, I was living in my husband own house. Now my mother-in-law was not accept to live in that house to myself with two children because she was lost her son. So these reasons how could I live with my childrens and protect theirself. How does I proceed legally. Please kindly suggest me. Note: I was housewife only when he died.