Taking the pill without withdrawal bleeding does not mean that you are pregnant. If you take the pill during the first half of your period, it often leads to withdrawal bleeding after you stop taking the pill, and when you take it during the second half of your period, there is often no withdrawal bleeding, so whether there is withdrawal bleeding or not, it does not indicate success or failure of contraception. The emergency contraceptive pill is effective, but it does not have a 100% contraceptive rate. Therefore, if you have not had your period by the time it is due, it is recommended that you take an early pregnancy test in your morning urine 35 days after menopause to rule out the possibility of pregnancy, and if you are pregnant, it is recommended that you terminate the pregnancy as soon as possible.