Causes
For most pregnant women, the breasts change from the beginning of the pregnancy until the baby's birth. Your breasts may increase in size. Superficial veins may be prominent and you may feel tingling around the nipples. The dark pigmented area around the nipple (areola) may increase in size and become darker. The little lumps found on the areola may become more apparent.
The following diagram illustrates breast changes during pregnancy.
As pregnancy progresses, you may notice a yellowish, sticky liquid running from your nipples. It is the colostrum that your breasts produce before producing milk. All these changes prepare your body to produce milk so you can feed your baby.
What can I do?