Spotting from 6 months,now im on norgestimate eth but still spotting starts before 14 days of period start.done hormonal blood test, that is normal but had pcos. what could be the reason? any thing serious? is it cured?

Probably controlled: If you are taking a moderate strength OCP at the same time every day, spotting is very unusual and you should have the anatomy evaluated as there can be other structures that can cause bleeding - cervical polyps are common for example. If you miss any days or even if you are late by a few hours in the latter part of the cycle spotting may occur