Ectopic pregnancy is broadly considered a state of pregnancy, except that the gestational sac is outside the uterus instead of inside the uterine cavity, and will not have a period (menstruation). Ectopic pregnancy is also like a normal pregnancy in that the body continues to produce large amounts of estrogen and progesterone, which promotes the continued proliferation of the uterine lining and provides a suitable environment for the fertilized egg to settle and the embryo to develop. The estrogen and progesterone will not drop for a short period of time, causing the endometrium to shed its withdrawal bleeding, so ectopic pregnancy will not have menstruation. Typical symptoms of ectopic pregnancy are menopause, abdominal pain, vaginal bleeding, and may also be due to localized pressure and irritation such as anal cramps, chest pain, lumbar pain, fatigue, pallor and other symptoms. Most ectopic pregnancies occur in the fallopian tubes, and to a lesser extent may occur in the ovaries and pelvis. The appearance of suspected ectopic pregnancy symptoms should go to the hospital in time, so as to avoid the danger of delaying the condition.