Mafron is a short-acting oral contraceptive pill that can also be used to regulate menstruation. This pill is a combination of highly effective progestin and estrogen that can inhibit ovulation, which means that it can inhibit the proliferation of the endometrium. If you take this pill for a long time, you may not get your period. This is a normal phenomenon because the ovaries cannot ovulate or the secretion of estrogen is low due to the suppression of ovarian function by highly effective progestin, so there will be no withdrawal bleeding after using the pill. If you do not get a period 7 days after stopping the drug, take the next course of medication directly.