National Breast and Cervical Cancer Early Detection Programhttp://apps.nccd.cdc.gov/cancercontacts/nbccedp/contacts.asp
Click the above link to see if there is a free Pap test program in your area, and if you qualify.
Go to http://apps.nccd.cdc.gov/cancercontacts/nbccedp/contactlist.asp
for a list of state contacts. If there is no free program in your area, or if you don't qualify, maybe ask if they can suggest something.
I'm sorry you're going through this. So frustrating to be a tweener
...too much income to qualify for many of the public assistance programs, but not enough to handle the costs all on your own. Talk about letting people fall through the cracks!