Let's first discuss what an ectopic pregnancy is. An ectopic pregnancy occurs when the fertilized egg implants outside of the uterus, such as in any part of the fallopian tubes, the corners of the uterus, or the abdominal cavity. Due to the different implantation sites, the symptoms of abdominal pain vary. A very small number of people feel no symptoms at all, experiencing only vaginal bleeding. Additionally, some people may feel severe discomfort in the abdomen. The last type involves severe, intense abdominal pain, resembling a tearing sensation, accompanied by nausea, vomiting, and hypotension shock.