The science of human reproduction tells us that after sexual intercourse, about 200 to 300 million sperms are ejaculated by the man into the female reproductive tract. The sperms begin to swim upwards within the tract to meet with the ovum. From the vagina, through the cervix and the womb to the fallopian tubes, the competing sperms had to overcome both chemical and physical barriers to make it to the site of fertilization in one of the tubes. But out of the over 200 million that are ejaculated only about 500 reach the site of fertilization in the fallopian tube. While some are lost through vaginal spermatoreflux (backflow of semen after a man ejaculates into the vagina), others get tired on the way because it is a tough race. While many too are overcome by the acidity in the vagina, others are blocked by the mucus in the cervix. While others are attacked and destroyed by the woman’s body defense cells called phagocytic leukocytes that see the sperm cells as aliens in the womb, some enter into the wrong tube. The 500 that managed to reach the ovum (egg), had to break through the two protective layers covering the egg (corona radiata and zona pellucida) to fertilize it. What is, however, astonishing about the whole process of fertilization is that the first sperm to reach the egg is never the one to fertilize it. Rather hundreds of sperm had to help degrade the two layers covering the egg until a path is created to allow one sperm to contact and fuse with the plasma membrane of the ovum. The winning sperm in your case was you. You won the race to life when in fact you were neither the first to begin it nor the fastest to run it nor the first to arrive at the site of fertilization.