Step 1: Ovulation
Once a month an ovary releases 1 egg into the fallopian tube.
Step 2: Intercourse
The penis enters the vagina and semen, containing sperm, is ejaculated into the vagina.
Step 3: Fertilization
A sperm connects with the egg in the fallopian tube.
Step 4: Implantation
The fertilized egg implants into the uterus and spends about 9 months growing into a baby.