Regular vacation is known as menstruation. Everyone’s health is different and there is no best way to delay menstruation. A more common way to delay menstruation is to take oral progesterone capsules or intramuscular progesterone injections. Menstruation is under the regulation of the hypothalamic-pituitary-ovarian axis, the body’s estrogen and progesterone secretion is a regular change, manifested in the cycle of endometrial shedding. Before menstruation, the level of estrogen and progesterone drops to a minimum, and the endometrium loses the support of estrogen and progesterone, which is manifested as vaginal bleeding. Therefore, when menstruation is approaching, oral or intramuscular progesterone can delay the onset of menstruation by raising the progesterone in the body. Normally, menstruation occurs 3 to 7 days after stopping progesterone. Therefore, it is recommended to time the use of progesterone according to the number of days you wish your period to be delayed. Progesterone is a prescription drug and should be used under medical supervision.