Contraceptive paper condoms generally refers to the contraceptive film, as long as the standardized use of the contraceptive film pregnancy chances are very small, but not absolutely will not get pregnant. Contraceptive film belongs to the external contraceptive measures, is placed deep in the vagina before intercourse, can play a role in killing the role of sperm, so as to achieve the purpose of contraception. As long as the use of the correct method of contraception success rate is very high, the chances of pregnancy is not great. However, if the diaphragm is used incorrectly, not at the beginning of coitus, but placed before ejaculation, it may lead to unwanted pregnancy. This is because prostate fluid also contains a small amount of semen during intercourse, which may enter the body and lead to an unwanted pregnancy. There are many forms of contraception, any contraception is not absolutely safe and reliable, such as do not want to get pregnant to pay attention to reasonable contraception, in order to reduce the chances of unwanted pregnancy.