Your doctor has prescribed you the right medication. Progesterone
is used either way, i.e., to delay a period or to induce a period. You can expect withdrawal bleeding to ensue 3-7 days after completion of treatment with progesterone. Since you have PCOS
and are anxious to conceive, apart from the routine treatment protocols, also concentrate on maintaining a healthy diet, regular exercise and a healthy weight. Hope you find this information useful. Wish you good health.