Pregnancy question?!?

hi! i had unprotected sex may 15. may 15 16 17 18 are the days i was fertile the most.after that day i didnt have sex at all.may 19 i ovulated. later i started having pains in breast stomach and back. i was very dizzy nauseated and had high body temperature. i asked around and they say its pms but i never had pms symptoms.june 3 i got my cycle and i was still having pains.when it went off i was still having those pains. now today i think i have implantation bleeding but i thought to myself that i couldnt be pregnant because i got my cycle.but this bleeding is different.its pink and very light.its so light dat i only need a panty liner.am i pregnant?