If you take progesterone, you will usually have your period 3 to 7 days after you stop taking it. However, it is not a generalization, subject to individual conditions and physical and other factors, such as endometrial thick or thin, pregnant after taking progesterone capsules, may not come to menstruation and so on. 1. Thick endometrium: when taking progesterone capsules before, need ultrasound to check the thickness of the endometrium, only when the thickness of the endometrium reaches a certain level, taking progesterone capsules can come to menstruation. The endometrium is more than 8mm, take progesterone for about 3~5 days, usually 3~7 days after stopping the drug will come to menstruation. 2. Thin endometrium: ultrasound examination of the endometrium is less than 7mm or less, simply taking progesterone capsules may not necessarily be able to menstruation, it is recommended that under the guidance of a doctor to take progesterone on the basis of the best plus estrogen, such as ethinyl estradiol cyproterone tablets, ethyl estradiol tablets, etc., usually also stop taking the drug will be 3-7 days after the menstruation. Individuals with poor drug sensitivity may show delayed menstruation. 3. Pregnancy: If you are pregnant and take progesterone capsules, you will not have your period after you stop taking them. It is necessary to go to the hospital for blood test to confirm the diagnosis of HCG. If you need to use progesterone, please standardize the use of under the guidance of a doctor, not to take progesterone capsules on their own, to avoid not to play the role of the effect, to avoid the adverse consequences of the drug. If there is any abnormality, it is recommended to consult a doctor in time to avoid delaying the condition.