hello i am 29 ys old, 154 cm and 54 kg. this month on 22 aug i did the iui and the doc prescribe duphaston for me since the day 1 of the iui for 3 weeks. my period has been irregular. my question, can the duphaston stop/delay my period if i am not pregnant? if it does when do i get my periods? its been 15 days today and the only symptom i get is stomach cramps which occured from day 12 to day 14. no spotting, had a mild dizziness and mild breast tenderness. i havent tested for pregnancy too because i do not know when is the best time to do the testing.should i test after i finish the duphaston or cna i test now since its been over 14 days.