You certainly should contact a lender, as Hermine advises. Find out what's possible.
However, you might well be better off not buying for awhile. Get your credit score up. Also, if you've got student loans, repayment is kicking in right around now. Make sure you can handle that, too. Just because you might be able to qualify to buy doesn't necessarily mean that that's the right decision for you right now.
So: See a lender. Then determine your own comfort level with the options presented.
Hope that helps.