It is still possible to get pregnant by washing the vagina immediately after intercourse because washing immediately after intercourse only washes away the semen in the vagina, some of the sperm may have already entered the uterus by this time and the sperm in the uterus cannot be washed away. Douching immediately after intercourse will reduce the chances of pregnancy, but it is not absolutely impossible to get pregnant. In this case, it is also necessary to pay attention to the next menstrual period. If the next period is delayed, it is recommended to test with a pregnancy test after one week.