Hello, and I hope I can help you today. You may have misunderstood your doctor s advice regarding taking the Trigestrel pills, as you will not conceive while taking this medication. Trigestrel is a form of birth control pill that is taken in normal women to prevent pregnancy. In women who do not get menstrual cycles, it will cause you to have regular period that you will not be fertile at any time during the pill cycle. Birth control pills are sometimes prescribed to women who do not get menstrual cycles on their own to reduce their circulating levels of other hormones that can interfere with fertility. For example, circulating elevated male hormones are sometimes present in women who do not ovulate consistently. The birth control pills temporarily reduce the level of these male hormones, so that when you stop them your body s normal cycles may return. So again to clarify, you will not conceive while taking the Trigestrel pills. After taking them and having regular cycles for two or three months, most doctors would have you discontinue them and either give you fertility medications or wait and see whether your own cycle resumes without the pills. I hope that this information clarifies the reason why you re on Trigestrel and the fact that there are no fertile days while you were taking the medication. Speaking with your doctor about the plan of what to do after you are no longer on the medication may clarify the situation better for you. I wish you the best of luck in conceiving, Dr. Brown