Took contraceptive pill twice inside a month menstruation can defer how long

At present, there is no strict regulation on the frequency of taking emergency contraceptives. It should be noted that emergency contraceptives contain a large amount of estrogen, which will interfere with the estrogen level of women themselves, leading to menstrual disorders, which may cause menstruation to advance or delay menstruation. The specific delay time is related to personal constitution. Most women can delay about 1~2 weeks.