An ectopic pregnancy happens when a fertilized egg implants outside the uterus—most often in the fallopian tube. It cannot continue as a normal pregnancy, and if untreated, it can become life-threatening. 💡 But here’s what’s important: knowing the signs early can save lives. The 3 most common warning signs are: Sharp pelvic or abdominal pain that doesn’t go away. Vaginal bleeding that is unusual or heavier than spotting. Shoulder pain, dizziness, or fainting—which may signal internal bleeding.