There is a good chance your breast milk supply will decrease during pregnancy. Some women notice a change in the first few months and others in the second trimester. As progesterone levels rise, prolactin (a hormone that stimulated milk production) is suppressed. Reduced prolactin affects breast milk production.

Another theory behind reduced breast milk supply during pregnancy is also associated progesterone. Progesterone loosens areola tissue allowing milk to escape more freely. After birth, prolactin tightens the tissue again, thus holding in milk.

< Back to Breastfeeding