Ectopic pregnancy does not necessarily cause a feeling of swelling and pain in the chest, as it is not a characteristic manifestation of ectopic pregnancy. Generally, the early stages of ectopic pregnancy cause the same pregnancy reactions as a normal pregnancy, causing symptoms such as nausea, vomiting, fatigue and drowsiness. These symptoms also vary from person to person, some people have more obvious pregnancy reaction, some people do not. Breast swelling and pain is mainly due to the body’s sex hormone levels have changed, resulting in congestion of the mammary glands, which in turn leads to swelling and pain, and this swelling and pain are mild, there is no effect on the body, the patient does not need to deal with, as long as pay attention to rest is good. At the same time for ectopic pregnancy, the earlier the treatment the better, so as not to cause late hemorrhage, or mass rupture leading to acute peritonitis, which is a great impact on the patient, so it is recommended that ectopic pregnancy in 40 days of pregnancy, should go to the hospital as soon as possible to do ultrasound to confirm whether it is an ectopic pregnancy.