medroxyprogesterone false test?

Preet

I hadn’t gotten my period for 3 months so my doctor had me take a blood test, which came back negative. She put me on medroxyprogesterone to start my period. Took the meds for 10 day, nothing. This day 2 years ago I found out I was pregnant with my first, so decided to take a test and got a very very dark positive. Could this be a false positive?