Pregnancy and breasts: what changes, what matters

Grossesse et poitrine : ce qui change, ce qui compte

Your breasts can sometimes be one of the first parts of your body to whisper that you are expecting a baby.

Unusual sensitivity, a feeling of tightness, a rapidly changing size… Long before your belly begins to round, your breasts may already start to transform under the influence of pregnancy hormones. They gradually prepare for a new stage: life after birth and, potentially, breastfeeding.

And yet, these changes are surprisingly rarely talked about.

For Pink October, we wanted to talk about breasts differently. Not to offer you yet another buying guide, but to help you understand what is happening in your body, recognize what is usual and get into the habit of observing it.

Because taking care of your breasts also means learning to know them.

Key takeaways:
• Your breasts may begin to change from the very first weeks of pregnancy.
• Tenderness, an increase in size, darker areolas or more visible veins can all be part of the usual changes.
• Every woman’s breasts change differently: there is no universal size or pace of change.
• Any new or unusual change should be reported to a healthcare professional.
• Regularly observing your breasts can help you better understand what is usual for you.
• Appropriate support should support the breasts without compressing them.

Contents

How do the breasts change during pregnancy?

There is no single way to experience these transformations. Some women notice changes in their breasts from the very first weeks, while others experience them much more gradually.

One thing is certain: over the course of nine months, the breasts do more than simply increase in size. Their physiology gradually changes to prepare the body for life after birth.

First trimester: often one of the first signs of pregnancy

From the first few weeks, hormonal changes can make the breasts more sensitive, tender or painful. They may also appear fuller. Swollen breasts can in fact be one of the early signs of pregnancy.

Some women experience tingling or suddenly find that they can no longer tolerate the rubbing of a bra that felt perfectly comfortable just a few weeks earlier.

The nipples may also become more sensitive and the veins on the breasts more visible. These changes accompany the hormonal and vascular changes that occur during pregnancy.

In other words: long before your belly, your breasts may already have begun their own journey.

Second trimester: the breasts continue to change

During the second trimester, breast growth may continue. The breasts may increase further in size and the areolas — the pigmented area around the nipple — may become larger or darker.

You may also notice the small glands located on the areola more clearly. These are known as Montgomery glands or Montgomery tubercles. These small glands help to moisturize and protect the nipple. They can become more visible during pregnancy.

Inside the breast, changes are also gradually taking place as the body prepares for life after birth and the possible establishment of breastfeeding.

Third trimester: the body prepares for life after birth

As childbirth approaches, the breasts may feel even heavier and the nipples may become more pronounced.

Some women may also notice a few drops of colostrum, the first milk produced by the breasts before mature milk. It can appear during pregnancy, sometimes several weeks before birth.

And if you do not notice any leaking? Again, there is nothing unusual about that. Not leaking colostrum during pregnancy does not indicate whether or not you will be able to breastfeed after birth.

Your body is preparing, at its own pace.

And as with many things during pregnancy, there is no “normal” breast size or universal pace of change.

Breasts during pregnancy: what is usual… and what should be checked by a healthcare professional

Pregnancy causes so many changes that it can sometimes be difficult to know which ones are simply physiological.

Changes commonly observed during pregnancy include:

  • an increase in breast size;
  • more sensitive or painful breasts;
  • more sensitive or darker nipples and areolas;
  • more visible veins;
  • more prominent Montgomery tubercles;
  • possibly, colostrum during pregnancy.

But being pregnant does not mean that every change should automatically be attributed to hormones.

A new lump or persistent hard area, an unusual change in the skin or shape of the breast, nipple retraction, abnormal discharge — particularly bloody discharge — persistent redness or inflammation, or a palpable lymph node under the arm should prompt you to seek advice from a healthcare professional.

These signs do not necessarily mean that there is a serious illness. Many breast changes can have a benign cause. But a new and unexplained change should be assessed by a doctor or midwife rather than simply monitored on your own.

Pink October: learning to know your breasts

Every year, Pink October reminds us of the importance of breast cancer prevention and screening.

But even before talking about examinations, there is one useful habit to adopt: knowing your breasts well enough to notice when an unusual change appears.

Regularly observing your breasts helps you become more familiar with their usual appearance and sensations. However, this observation does not replace an examination performed by a healthcare professional or the screening tests recommended according to age and individual risk level.

During pregnancy, this observation may seem more difficult because the breasts are already changing so much. This is all the more reason to discuss it with the midwife or doctor monitoring your pregnancy and to report any change that seems different from the usual evolution of your breasts.

From the age of 25, a clinical breast examination performed by a healthcare professional is recommended once a year. For women aged 50 to 74, with no symptoms and an average level of risk, the national organized screening program provides for a mammogram every two years.

Monitoring recommendations may, however, be different in the case of a personal or family history or a particular level of risk.

During Pink October — and especially during the other eleven months of the year — the goal is therefore not to live in fear.

It is simply about observing, knowing and listening to your body.

Why does support become so important during pregnancy?

As the breasts increase in size and weight, their needs change too.

Appropriate support obviously does not stop the natural changes of pregnancy. However, it can help improve the comfort of breasts that have become heavier or more sensitive and limit discomfort caused by movement.

As pregnancy progresses and the breasts continue to change, a properly fitted bra can therefore become particularly valuable.

But support does not mean compression.

During this period, when the body can change from one week to the next, the aim is to leave enough room for the breasts to evolve: soft fabrics, a properly fitted band, straps that distribute weight effectively and a construction that does not create unnecessary pressure points.

If your bra leaves deep marks on the skin, compresses your breasts, rides up at the back or if the cups become too small, it may be time to take your measurements again.

And above all, it is worth accepting one rather liberating idea: your usual size is not an unchanging reference.

Your body changes. Your clothing should be able to change with it.

Your breasts are changing. The way you see them can change too.

Pregnancy, birth, breastfeeding, postpartum…

In just a few months, the breasts can sometimes go through more transformations than they have in the previous several years.

They may become fuller, more sensitive, change shape and then evolve again after childbirth. These transformations are neither imperfections to correct nor details to ignore: they simply tell the story of an extraordinary period in your body’s life.

So, during this Pink October, perhaps this is what we should remember:

Take the time to look at your breasts.
Learn to recognize what is usual for you.
Talk to your doctor or midwife about any change that concerns you.
And choose to support your breasts gently rather than asking them to remain the same.

Because taking care of your breasts may simply begin with learning to listen to them.