Ectopic pregnancy is any pregnancy that occurs outside the uterus.
Other possibilities are the ovary, cervix, or abdominal cavity. It occurs in about 1 out of 200 pregnancies. It is very serious because when the pregnancy grows in these abnormal areas, it can easily cause massive, rapid bleeding, which can result in a decrease in fertility and even death. Usually, some sort of anatomical problem exists which traps the fertilized egg in the tube. Pelvic infections include chlamydia and gonorrhea.