I took my first ever depot provera shot on 3rd day of period days (usually period last for 5-6 days) after 3-4 days I lost my virginity (we both used protection mine was depo shot n he used condom. After few days I started experiencing heavy bleeding for 10-15 days after that I experienced light bleeding more than spotting (25-30 drops of blood daily for another 10 days ,but I have not got my period ,this is just bleeding its different from period blood, my question is whether I am pregnant or not.