I was on the depo shot for about a year & a half. I was supposed to go back 2 months ago on July 8, I didn't get it.. I started my period on September 1-5 & it was lighter than usual. I had unprotected sex on September 5. We did not use protection and he did cum in me more than once.. two days later on September 7, I started spotting. Very light & very light in color.. today is September 10 & im still bleeding very light. Can I possibly be pregnant? Please help me, any information is greatly appreciated.