Generally, breast pain occurs at 8 weeks of pregnancy, which is about 56 days of pregnancy. Pregnant women feel swollen and painful breasts, and examination can reveal a gradual increase in breast volume, with obvious veins showing, enlarged nipples, deepening of nipple and areola coloring, sebaceous gland hyperplasia around the areola, and dark brown nodules called Montserrat’s nodules. These changes in pregnant women are related to the significant increase of estrogen and progesterone in the body of pregnant women after pregnancy. The first symptom of pregnancy is menopause, followed by early pregnancy reaction, frequent urination, changes in breasts and significant changes in gynecological examination. If there are breast changes at the beginning of early pregnancy and then there is no breast pain, you need to be alert to the occurrence of embryonic abortion.