The disappearance of chest pains at six weeks of pregnancy is not necessarily a fetal abortion. It is a normal early pregnancy reaction for pregnant women to feel their breasts swell and hurt in early pregnancy. During pregnancy, under the influence of estrogen and progesterone, nipples and breasts start to increase in size, engorgement is obvious, areola deepens, etc. This series of changes is the breast gland fully developing and preparing for the next step of milk secretion. If the pregnant woman just disappears from the chest pain, consider that it is just the second development of the breast completed, so the symptoms disappear, not necessarily related to the embryonic abortion. The final decision of embryonic abortion needs to be based on the ultrasound examination which observed no change in the gestational sac and cessation of the growth of the fetal heart and germ, combined with the results of the HCG (human chorionic gonadotropin) test. If a pregnant woman has symptoms such as disappearance of early pregnancy reaction such as nausea and vomiting, vaginal bleeding in addition to disappearance of chest pain, or if she has previously experienced premature fetal arrest during pregnancy, she needs to seek medical attention for relevant tests. Pregnant women do not need to be too nervous because of the cessation of chest pains, but if they are really worried, they can go to the hospital for relevant examinations. During pregnancy, it is more important to relax and keep a good state of mind. In addition, you should ensure sufficient nutritional intake, have a diversified and multi-element diet, and you can eat more fresh fruits and vegetables to replenish sufficient vitamins. You should also pay attention to warmth and rest, exercise appropriately, have regular maternity checkups, and go to the hospital immediately if you experience abdominal pain, vaginal bleeding and other uncomfortable symptoms.