Medicaid is for low-income US citizens who are elderly and/or disabled, certain very-low income households with qualifying minor child and/or pregnant woman. For households with minor child/expectant mother, both parents' income & assets are required, & if mother lives alone, child support from the father is calculated in household income to qualify along with her earnings.
So which qualification do you fail to meet? Since this is under Immigration, you're not a US citizen? If you are having financial problems, go to your sponsor for help. Under public charge laws, applying for or using any public benefits, such as Medicaid, makes you permanently ineligible for US citizenship. Your sponsor must repay any assistance you received, and pay for your ticket back to your country.