Ectopic pregnancy refers to the implantation of a fertilized egg outside the uterine cavity. A pregnancy located outside the uterine cavity is commonly known as an ectopic pregnancy. The most common type of ectopic pregnancy is a tubal pregnancy, though less common types include abdominal, ovarian, and cervical pregnancies. How does an ectopic pregnancy occur? Inflammation is the most common cause, as it can lead to adhesions in the fallopian tubes or pelvic area, causing abnormal transport in the fallopian tubes. Additionally, ectopic pregnancies can result from scarring after surgeries, such as pregnancies in cesarean section scars, and from anomalies of the uterus, like pregnancies in a remaining part of the uterus.