The vaginal contraceptive pill is to melt the drug in the vagina, and then have intercourse, and when the sperm is ejected into the vagina during intercourse, the drug will kill the sperm, which will play the role of contraception in clinical practice, there will be certain disadvantages: First, if the time of the pill and the time of intercourse are not well mastered, it is possible that the efficacy of the drug will not be achieved, and the sperm will have the possibility of survival, and the surviving sperm will enter the cervix and reach the fallopian tube, and combine with the egg to form a fertilized egg. The surviving sperm will enter the cervix and reach the fallopian tubes, where it will unite with the egg to form a fertilized egg, thus possibly leading to pregnancy. This method of medication may also cause local allergies, so it is recommended to give the appropriate contraception according to the specific situation. It is best to use condoms in daily life, which are safe and hygienic and have few side effects, and most importantly, are effective.