Ok I got my period June 3rd, then skipped 2 months. I took multiple tests and they were negative. In the middle of August (2nd skipped month), my doctor made me take provera to start my period. My period finally started August 25 (lighter than normal though) I got the depo shot on the 28. I just got a positive this morning. It wasn't dark but its definitely noticeable. I have to get a blood test later. And yes, I've been having unprotected sex since August 6. Could the test be wrong?