After ovulation women will buttock pads can help fertilization, but compared with lying flat, there is no authoritative and precise basis for which fertilization rate is higher. The woman in the ovulation after intercourse, the sperm will travel from the vagina to the uterine cavity into the fallopian tube, and the fallopian tube at the egg to combine into a fertilized egg, and the ovulation after intercourse will buttocks cushion is helpful to the conception, mainly to help the sperm to enter the women’s uterine cavity, but also help to reduce the flow of semen, but with the lying compared to, what is the high rate of fertilization is not authoritatively accurate basis. In addition, it should be noted that, ovulation coitus whether fertilization can be affected by a variety of factors, such as sperm abnormality, tubal impassability or adhesion, etc., so ovulation coitus may also be infertile, for couples wanting to have children, and at the same time, should be actively do a good job of pre-pregnancy examination.