Progesterone Softgels are used to regulate menstruation and usually need to be taken for 5-7 days, with menstruation occurring 3-7 days after stopping the medication. Progesterone Soft Capsules should be taken while eating spicy and stimulating food as well as cold food. If you do not have your period 10 days after you stop taking the medication, you should go to the hospital for relevant tests, such as a blood HCG test, to rule out whether the irregularity is caused by pregnancy. If it is not caused by pregnancy, even an ultrasound examination should be performed to understand the thickness of the endometrium, because if the endometrium is too thin to reach the proper thickness when taking progesterone soft capsules during the treatment of irregular periods, it will take about 2 weeks longer to stop taking progesterone soft capsules before menstruation occurs. The timing of menstruation after progesterone softgels is determined by the thickness of the endometrium of the uterus for each woman.