I came of the depo in mid april.june 8th unprotected sex + 21st i had what i thought was implantation bleeding.neg tests all symptoms help!!

Deep breaths :): Question: have you resumed normal cycling after finishing DMPA? If not, June 8th is not likely to be optimal for conception, it is random. I hate being the bearer of bad news but: 1) symptoms tell you nothing about conception , 2) and 'implantation bleeding' is 99% fiction. I know many online say different. Do not get discouraged, re-establish a normal cycle, and try again. Good luck!