Would you believe other woman is pregnant?

we are 99.9% positve shes not pregnant. came to my house march 6 and dropped off what she called her "proofs". these were doents from the same clinic that i go to. i was suspicious due to the fact that she works in the hospital so she probably has many friends that could have made or sold her those doents. i happened to have an appointment there myself so i had them checked out and were told they were real doents but with falsified information on them, even her name was misspelled. since my appt was to check for stds i talked to the std counselor about my situation and even tho legally you are not supposed to, she looked up the girl for me in the computer and it was a lie. she never took pregnant test there. also her first mistake she made that made me suspicous was telling me she paid $75 with no insurance and that my dh better start helping her with money. i to am uninsured and was told the test cost $150. $46 if you dont want to see a doctor. no way she paid $75