Conception only occurs in the distal fallopian tube with a single sperm fertilizing an ovum.
Sperm must have the capacity and ability to swim 6 - 7 inches through the entire uterus and the fallopian tube to fertilize the ovum. There are only two days per month that fertilization can occur.
Natural Conception Lubrication capacitates sperm so that they can swim the 6 - 7 inches, and then can penetrate and fertilize the ovum.
Read more about how hormones affect fertility...The Key to Many Infertility Issues Found in Hormones