It is okay to shower half an hour after intercourse during preparation for pregnancy. After intercourse the sperm will be energized at the cervical opening and travel to the uterine cavity and fallopian tubes to combine with the egg to form a fertilized egg. If you stand and take a shower immediately after intercourse, it is possible that most of the semen will be discharged out of the vagina, reducing the chances of conception. After intercourse during the preparation period, more attention should be paid to bathing, try not to take a tub bath, so as not to increase the chances of suffering from gynecological inflammation. When preparing for pregnancy, you should also calculate the ovulation period, in the ovulation period, and reasonable arrangement of the time of coitus, will also improve the chances of pregnancy. In addition, during the preparation for pregnancy must maintain a happy mood, avoid overwork, stay up late, and need to pay attention to folic acid supplementation.