I have started using duphaston 10 mg since dec, when I used in dec I got my period. Doctor suggested neto have the next course of tablet on 26th day which 11th jan however I started from 12th jan and I took that irregularly. I have used 10 tablets: 2 per day .its been a week that I didn't get my period. Also doctor suggested this tablet as I had pcos. Right now I have cravings, breast pain. Are these the symptoms of pregnancy or tablet or missed period.