Generally, fertilization takes place in [A] the fallopian tube. After ovulation, an egg is released from the ovary and enters the fallopian tube. If sperm are present in the fallopian tube due to recent intercourse, fertilization can occur when a sperm successfully penetrates and fuses with the egg. The fertilized egg, now called a zygote, undergoes cell division as it moves down the fallopian tube toward the uterus. It takes several days for the zygote to reach the uterus, where it implants into the uterine lining and continues to develop into an embryo.

While the uterus provides the environment for embryo implantation and development, fertilization typically occurs in the fallopian tube, where the egg and sperm meet. The cervix acts as a passage between the vagina and the uterus, and the vagina serves as the entry point for sperm during intercourse.