i got the depo provera shot 6 to 7 days after my period and had sexual intercourse the day after. at the same time i was taking a medication that i was told would effect the birth control. im not sure if the man came in me or not. it is now 10 days later and i am experiencing spotting, nasuea, and headaches. i am not sure if these symptoms are from the shot or pregnancy. someone help?