An ectopic pregnancy occurs when a fertilized egg implants and grows outside the main cavity of the uterus. The most common site for an ectopic pregnancy is in one of the fallopian tubes (called a tubal pregnancy), but it can also occur in other areas, such as the ovary, abdominal cavity, or the cervix. Key Characteristics: Non-viable Pregnancy: The fertilized egg cannot survive outside the uterus, and the growing tissue might damage nearby organs, causing life-threatening complications. Symptoms: Sharp or stabbing pain in the abdomen, pelvis, or shoulder. Vaginal bleeding or spotting. Weakness, dizziness, or fainting (a sign of internal bleeding). Risk Factors: Previous ectopic pregnancy. Pelvic inflammatory disease (PID). Endometriosis. Surgery on the fallopian tubes or pelvic region. Use of fertility treatments or intrauterine devices (IUDs). Diagnosis: Ultrasound: A transvaginal ultrasound can usually confirm the location of the pregnancy. Blood Tests: Measuring human chorionic gonadotropin (hCG) levels to assess pregnancy progress. Treatment: Medication: Methotrexate can be used to stop the growth of the pregnancy if it is detected early. Surgery: In more severe cases or if rupture occurs, surgery (laparoscopy or laparotomy) is required to remove the ectopic tissue and repair or remove the damaged fallopian tube.