Due to the different physical conditions of pregnant women, when to have milk after pregnancy varies from person to person. Most women will have a small amount of milk secretion in their breasts when they are 5-6 months pregnant, and a small amount of milk will flow out when gently squeezed by hand. In some cases, milk production occurs in the 8th to 9th month of pregnancy, and in some cases, milk comes out 24-48 hours after delivery. The time for milk to come out sooner or later is a normal phenomenon, pregnant women do not have to worry too much, during the period of time pregnant women must maintain a good mood, pay attention to maintain breast hygiene and cleanliness, often use warm water to wash the breasts, to avoid breast infection, and also pay attention to, wash the breasts, do not squeeze the nipple, in order to avoid causing uterine contraction phenomenon.