After taking the emergency contraceptive pill, if you have sex again after taking the pill without contraception, you need to take the emergency contraceptive pill again, otherwise you cannot exclude the possibility of pregnancy. It is best to take certain safety measures to actively prevent pregnancy during intercourse, and to take the pill no more than three times a day, and only once a month. If your period is delayed for 7 days, you can use the early pregnancy test to determine if you are pregnant. It is best to choose morning urine for the test, because the concentration of blood HCG in morning urine is higher and most accurate, and blood HCG is also needed for the determination. Emergency contraceptive pills can cause adverse consequences of endocrine disorders in women if taken several times within a month.