The vast majority of women begin to experience localized breast swelling and pain around 40-45 days after menopause, but because each woman is not equally sensitive to the increase in estrogen, some do not feel breast swelling and pain at all, but rather feel localized breast enlargement. It can’t be said that this is an abnormal phenomenon, only that individual differences are different, that’s why there is no sensitivity to estrogen and no breast swelling and pain, it is not the lack of breast swelling and pain caused by poor embryonic development, which is also a normal phenomenon. It is advisable to go to the hospital regularly after pregnancy to have the corresponding examination, monitor the ultrasound, do the blood HCG and progesterone test, as long as they are normal, it is a normal phenomenon, do not be nervous. It is also recommended to strengthen nutrition, pay attention to proper rest and not to have intercourse during the first 3 months of pregnancy.