If an ectopic pregnancy is not treated, it can cause worsening of signs and symptoms such as dizziness, weakness, feeling of faintness, low blood pressure, pain in the shoulder area, sudden, sharp pain in the pelvic area, fever, flu-like symptoms, and vomiting. The area surrounding the ectopic pregnancy may rupture and cause bleeding. If an ectopic pregnancy is undiagnosed, it can lead to cardiac arrest and death.