Good evening, Brownsugar,
Yeah, you can't, unless, you have your own money to use as a down payment and qualify for a mortgage loan.
Have you been pre qualified for a a loan? Have you been employed for the past 2 years? Do you have any credit ? Do you know what your credit score is?
Depending on what you are looking for, at the very least, you would need 3.5% as a down payment (FHA loan). Example, if you were to purchase a $100,000 home you would need, at the very least, $3500. That is provided you qualify for an FHA loan.
Speak with your local banker or contact a lender to inquire. This is, normally at no cost to you. Otherwise go to http://www.freecredit.com
& discover what, if any, issues you may have with your credit.
Hope this helps!