Hi, I have irregular periods, i am 3 day delay so my OB told me to take 10 tablets of duphaston for 5 days , but i took the 6 pills (3 days) and i forgot to take na 3 pills after i remember i took the last 4 pills again) I tried to used PT., but its negative last time i used duphaston (continous 5days 10 pills) got my period after 3 days but today until now i am 1 week delay from my last pill of miss duphaston.