My period is late by 2days and earlier i was diagnosed with pcos but during ovulation there was a positive line and we had sex on 12,13,14,16th day but now it's negative in pregnancy kit on 30th day.if it's positive in ovulation this can't be pcos r8?

Ovulation is usually delayed or absent with PCOS, but can spontaneously occur, which may explain the "positive line", but conception does not always occur even with multiple sexual interactions. If one is "trying to conceive" under conditions described, a semen analysis by a urologist, and ovulation induction for PCOS may be indicated: ask for a referral to a fertility specialist.