My father tested positive later me mom and sister got tested my results came negative while sister and mom's results were late I dropped them on bike but with precautions they wore masks and me as well after my results came their results came after 3 days stating they both tested positive. Should I need to get tested ans start medication or need to wait for any symptoms my siter and mom have no symptoms and me as well. Suggest me what to do .thank u, saturation is at 99