Positive and negative test

Jasmine

I went to the doctor on 9/4 and got a few test done got my result back that said positive for hcg urine test so. I’m just curious cbecause the doctor put me on provera because my cycle had not been on in 5 month. I wanted to double so I bought some home test and took them and they said negative. Has anyone else had this happen ? I’m curious I stopped taking the provera until I can confirm Monday morning. Please help