Off depo-provera injection for 2months. i start my period sep1-5. i had unprotected sex sep5. 2 days later i started spotting lightly. sep11 & nauseous. preg?

Possible: It is possible but not likely that your symptoms are being caused by pregnancy. you would be expected to ovulate about 9/15 and would not be likely to have conceived this early in the cycle.If you haven't started a period by 9/30, a pregnancy test would be a good idea. In the meantime check with your doctor about what might be causing the nausea.