If the purpose is to regulate menstruation, such as relatively low menstrual flow or if you have dysmenorrhea, you can drink motherwort when you are about to have your period. Motherwort has the effect of activating blood circulation and removing stasis, and can increase the amount of menstruation. Drinking motherwort at the time of menstruation will not affect the menstrual cycle itself and it is recommended to take it. However, special attention should be paid to the fact that if you are planning to get pregnant during the month and have sex during ovulation, you should not drink motherwort again. If you drink motherwort again at this time, it may prevent the fertilized egg from being laid smoothly or may cause a miscarriage in clinical practice. In clinical cases of irregular menstruation or dysmenorrhea, it is best to have the appropriate tests done to understand the cause before giving the medicine, which will be more effective.