Hi, Thanks for the query. Duphastone is progesterone tablet. Duphastone itself may not lead to pregnancy. But if conception occurs it will help in implantation and maintainance pregnancy. In case of absence of pregnancy, stopping Duphastone tablet can lead to withdrawal bleeding. Sometimes it may take one week to ten days to get the withdrawal bleeding. As it is six days over after stopping the pills, once go for pregnancy test. If the test comes positive, that is good. If the test comes negative, wait for one more week. Possibly by that time you will get withdrawal bleeding. If not consult gynecologist once and get evaluated to find out the cause for delayed periods like deficiency of both estrogen and progesterone etc. Then you can plan treatment accordingly. Take care.