How long does it take to get your period after taking the emergency contraceptive pill?

Emergency contraceptives contain a large amount of estrogen, generally in the use of three to seven days or so withdrawal bleeding, if the amount of bleeding and menstrual blood volume similar, can be regarded as menstrual cramps; withdrawal bleeding is also a manifestation of contraceptive success. Emergency contraceptives side effects are greater, not recommended as a routine contraceptive method.