hi, im married for 20months aalready but i didn't concieve yet. my prolactin, FSH and the likes are in the normal range, however, i still have PCOS condition. i don't have my periods regularly, have tried taking provera to induce my period and have tried taking clomid too but up to now there is no result yet (i'm not getting pregnant). im taking metformin 2x daily too. what seems to be the cause of my infertility? im not obese either.