Here's a breakdown:

* Ovulation: An egg is released from the ovary.

* Travel to the Fallopian Tube: The egg travels down the fallopian tube.

* Fertilization: If sperm is present in the fallopian tube, one sperm cell will penetrate the egg and fertilize it.

This fertilized egg then continues to travel down the fallopian tube to the uterus, where it will implant and continue to develop.