The delay in menstruation after taking the emergency contraceptive pill varies with each person’s body type. The emergency contraceptive pill is an emergency contraceptive after sex and should be taken within 72 hours after sex. Because the emergency contraceptive pill contains a lot of hormones, it may cause the level of estrogen in the body to rise, resulting in endocrine disorders and possible disruptions in the menstrual cycle of women. If you have not had your period for more than seven days, you need to go to the hospital for an ultrasound and a blood test for HCG and hormone 6 to determine if the contraceptive pill has failed to cause pregnancy. If pregnancy is ruled out, endocrine levels should be looked at and then treated with appropriate medication. In addition, women should avoid eating stimulating foods while taking emergency contraceptive pills and follow the instructions strictly.