The disappearance of breast swelling and pain during pregnancy does not determine whether or not the fetus has stopped. Breast pain in early pregnancy is mainly due to the body’s rising hormone levels, thickening of the fat layer, and blood filling the mammary glands, which results in swollen and sensitive breasts. Breast swelling is one of the early pregnancy reactions, and breast growth is to prepare for breastfeeding in the future. Breast swelling and pain usually occurs in early pregnancy, and as the body’s hormone levels stabilize, breast swelling and pain will gradually decrease in mid-pregnancy. If breast swelling and pain disappears in early pregnancy, there is no need to be overly nervous, in addition to chest swelling, early pregnancy reaction also includes dizziness, fatigue, nausea, vomiting and other symptoms, each person’s body has a different degree of sensitivity, the reaction to early pregnancy is not the same. If the early pregnancy reaction suddenly disappears, you can go to the hospital in time through the blood HCG value, progesterone, and ultrasound to confirm whether the fetus is normal.