It is also possible to get pregnant during the safe period in vitro ejaculation. The reasons for this are as follows: First, a small amount of prostate fluid flows out of the male before ejaculation, during intercourse, and the prostate fluid contains a small amount of sperm. The site of in vitro ejaculation, if in the female vulva and vaginal opening, the sperm may also enter the female body leading to pregnancy, which is why there are often virgin pregnancies. Third, the safety period for women is relative, because ovulation is affected by external factors, ovulation may be disrupted, the safety period is not necessarily safe, so if both men and women want successful contraception, try to avoid this way of contraception through extracorporeal ejaculation.