Breast changes during pregnancy

Together with medical professionals, we created a helpful infographic that outlines everything you need to know about breast changes during pregnancy and beyond.

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What Do Professionals Say About ...

Breast Changes During Pregnancy?

Anouk Bolhaar

Lactation Consultant Mama Vitaal

"The development of breasts varies greatly from woman to woman, but it’s amazing how nature works. Take the Montgomery glands, for example. These glands play a vital role in areola breast changes during pregnancy, acting as a ‘scent organ.’ The fluid they secrete provides sensory stimulation for the baby, helping them find the nipple more easily and latch effectively."

Nina Cingel

Lactation Consultant and Founder of Boezemvriend

"Most women realize they’re pregnant because of sore breasts while pregnant. At first, breast changes happen rapidly—breasts swell, nipples become tender, and your bra might suddenly feel uncomfortable. Growing heavier and increasing in size are completely normal signs, whether it’s your first, second, or third pregnancy."

Marjes Elling

Lactation Consultant IBCLC

"Breast changes don’t stop after pregnancy. During pregnancy, it’s common to experience pregnancy nipple discharge, as your body prepares for breastfeeding. While nursing, breasts may appear smaller after about six months due to a loss of fat tissue. However, by the time your baby is 15 months old, most women find their breasts return to their pre-pregnancy size—not smaller. This holds true whether or not the mother breastfeeds."

Want to know everything about breast changes during and after pregnancy?

We feel you. Download our infographic now to learn what to expect from your breasts before, during, and after pregnancy.

FAQ about Breasts During and After Pregnancy

When do your breasts start to change during pregnancy?

Often as early as the first trimester. Tender, swollen, or heavier breasts are one of the first signs of pregnancy, as your body prepares for breastfeeding.

Why are my breasts sore or tender while pregnant?

Hormonal changes and the rapid growth of breast tissue can cause discomfort. A supportive maternity bra, like the Feelou® bra, helps relieve pressure and reduce friction.

What does nipple discharge during pregnancy mean?

It’s usually colostrum, the first form of milk your body produces. This can appear in the second or third trimester and is a normal part of pregnancy.

How much do breasts grow during pregnancy?

It varies per woman, but both cup and band size can change significantly. With an adaptive bra, you won’t need to buy a new one every few months.

What happens to your breasts after pregnancy and breastfeeding?

After birth, breasts often feel fuller due to milk production. Over time, they usually return toward your original size, though every woman’s experience is different.

Does your bra size gets bigger or get smaller after pregnancy?

Many women return close to their pre-pregnancy size within 6-18 months, but some remain slightly larger or smaller. This is normal and varies individually.

What is the best bra for breasts during pregnancy?

A soft, wireless bra with flexible cups and an adjustable closure is ideal. The Feelou® maternity and nursing bra adapts with you, offering comfort in every stage.

Do I need a nursing bra before the baby is born?

Yes. From the first trimester many women already find a maternity and nursing bra more comfortable. With Feelou®, you get support during pregnancy and convenience when breastfeeding.