A few pregnant women produce a small amount of milk around the 6th month of pregnancy, and most do not produce milk until after delivery, which varies from person to person. During pregnancy, a woman’s hormone levels change significantly and estrogen and progesterone increase rapidly. After the 12th week of pregnancy, with the formation of the placenta, the placenta also produces estrogen and progesterone, and also produces lactogen, but because it is inhibited by more estrogen in the body, lactation usually does not occur, so there is usually no significant milk discharge. After the 6th month of pregnancy, there is only a small amount of milk secretion, which does not spontaneously overflow and is usually not easily noticeable. Only when pressing the nipple or massaging the breast, there will be a yellowish discharge, which is milk. The vast majority of pregnant women begin to experience more milk production 2-3 days after delivery to meet the needs of the newborn. If milk secretion occurs during pregnancy, it is recommended that you do not squeeze your breasts hard and just let nature take its course. During this period, you need to keep your breasts clean and hygienic and try to wear loose clothing.