If you have intercourse and take the emergency contraceptive pill orally within 72 hours after internal ejaculation, the contraceptive effect can be as high as 98%, but there are still 2% of people who take the emergency contraceptive pill within the specified time, which may also cause pregnancy, so the contraceptive effect of the emergency contraceptive pill is not 100%. It is recommended that if you are not planning to get pregnant, it is better to use condoms for contraception because they are clinically free of side effects, convenient, simple and hygienic, and also very effective. Before using condoms do the appropriate checks to know if the condom is broken. When buying condoms make sure to choose the size of the condom according to the size of your penis, so as not to cause the condom to fall off during sex and cause pregnancy.