Changes in Breasts During Pregnancy

As you know, women's bodies go through all kinds of changes during pregnancy. Specifically, there are changes in breasts that women experience. We'll tell you everything about it here.
Changes in Breasts During Pregnancy

Last update: 01 May, 2019

In addition to the obvious changes like increase in size, there are other changes in breasts that indicate that a woman is preparing to breastfeed her baby. What are these changes in breasts?

It’s because of hormonal activity and increased blood flow to the breasts. However, you won’t start noticing these changes until the 4th or 6th week of pregnancy.

On the other hand, many women say their breasts feel inflamed and tingly before their first missed period. In some cases, they feel pain similar to premenstrual syndrome.

What changes in breasts happen during pregnancy?

Preparing for breast milk doesn’t just involve increase in breast size, but also discomfort, like what we mentioned above. This discomfort is usually temporary and doesn’t last long, so they don’t get in the way of daily activities.

Here, we’ll explain in detail the different changes in breasts during pregnancy. You’ll notice that they become hypersensitive. Even rubbing against certain types of clothing can be irritating.

Changes in Breasts During Pregnancy

Size and volume

Breasts start to grow starting from almost the first week of pregnancy. Once the 8th week of pregnancy arrives, they’ll noticeably grow in size that will make the woman look more rounded in their hips and belly. In some cases, the increase in size and volume can cause back pain.

In total, breasts can increase between 25% and 50% more than their normal size.

Color and size of nipples and aureolas

In addition to the growth of breasts, pregnant women also experience other types of changes, such as change in the color of their nipples. In general, they get darker and can be slightly uncomfortable.

Among the hormonal changes that occur, the increase in melanin causes skin color of nipples to darken considerably. In addition, some women may also notice freckles or spots on their face, back, arms, and more.

On the other hand, the nipple sizes also increase. The aureolas become wider and makes it easier for babies to breastfeed.

Breast skin stretches

When breasts grow, the skin stretches. Therefore, it’s normal to see veins more easily. In the same way, stretching can also cause stretch marks on the breasts.

However, you can both disguise and prevent these marks by using moisturizers and lotions. Apply them by massaging them on your breasts.

Changes in Breasts During Pregnancy

Lubrication of the breasts

To keep your nipples lubricated and hydrated for your baby, your body thickens the Montgomery glandsThey’re the small lumps in the areola that have an oily substance when breastfeeding babies.

Breasts start to leak

By the third month of pregnancy, some women experience secretion of colostrum. This leak may increase during the last weeks of pregnancy. What is it? Colostrum is the trace of thick, yellow substance on the inside of women’s bras.

If you notice colostrum leaking, we recommend using disposable or washable pads. Also, don’t let your nipples dry thoroughly in open air after showering to prevent them from drying too much. Instead, use a supportive, cotton bra.


Changes in breasts during pregnancy usually don’t prevent women from going about their daily lives. However, if it’s too painful or causing problems, immediately consult your doctor.

To alleviate discomfort, you can use some simple actions. For example, you could massage them and use moisturizers and lotions. Of course, it’s important to use the right clothes and avoid squeezing your breasts with bras that are too tight.

This text is provided for informational purposes only and does not replace consultation with a professional. If in doubt, consult your specialist.