Hi doctor I had pcos from last 12 years my age is 28 I had a boy of 8 years old i had taken treatment to conceive from last 1 year but no result so I had stopped treatment 2 months back .After that I had no periods from 2 months I conducted home pregnancy test it was negativ .so I had taken sysron n for 5 days.now 10days pass my priods not yet started .what was the reason plz.......answer ......thank u