When you use a progesterone
supplement, you will get a withdrawal bleeding 3-5 days after completion of the treatment. If you still do not get a period, you should report the matter to your doctor as you may need either further supplementation or further investigation. You would need to get investigated for your hormonal
status, tubal patency and uterine response as well as ovarian reserve
along with male factor evaluation if you wish to conceive. Good luck.