Ectopic pregnancy refers to the implantation of the gestational sac outside the uterus, with over 95% of ectopic pregnancies being tubal pregnancies. Symptoms of ectopic pregnancy include lower abdominal pain, vaginal spotting, and shock. In many cases, there are no obvious clinical symptoms in the early stages of an ectopic pregnancy. This is because the gestational sac is relatively small, causing less irritation locally and not leading to significant abdominal pain. However, if the ectopic pregnancy grows significantly, it can irritate the fallopian tube and also stimulate the peritoneum, causing abdominal pain. Around five weeks, significant pain can be felt, but as the pregnancy progresses, this pain can increase in severity and may lead to rupture of the tubal pregnancy, causing hemorrhagic shock, which then necessitates emergency medical intervention.