Breast Changes During Pregnancy – 7 Different Changes

Breast Changes During Pregnancy - 7 Different Changes

It’s expected that pregnancy is a time when a woman’s body goes through many physical changes. Something that we don’t expect is the many different breast changes during pregnancy.

An expanding belly and weight gain are probably the most obvious changes people tend to associate with being pregnant, but there’s so much more than that!

Your uterus also expands to allow room for your developing baby.

In some women, fluctuating hormone levels can even produce a dark line (known as the linea nigra) in the middle of their abdomen, running from their belly button to the pubic bone.

Breast Changes During Pregnancy – 7 Different Changes

Pregnancy is also an important time when several changes occur in your breasts.

Most of these changes are related to preparing your breasts for breastfeeding.

Here are seven different changes that can occur to your breasts during pregnancy.

Breast Changes #1: Sore Breasts

For some women, one of the first signs of pregnancy is sore breasts.

Therefore, one of the first breast changes during pregnancy is sore breasts.

Rapidly increasing levels of the hormones oestrogen and progesterone are thought to be responsible for this.

Fortunately, most women find this soreness eases off to a more manageable level, or even goes away, after the first trimester.

In the meantime, the following tips can help you minimise the soreness:

  • Wearing a well-fitting maternity bra
  • Avoid underwire bras
  • Wear a cotton sleep bra to bed
  • Take extra care to avoid knocking your breasts or brushing past things
  • Ask your partner to take a hands free approach to your breasts.
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Breast Changes #2: Bigger Breasts

This is probably the most welcomed of all breast changes during pregnancy!

Many women notice their breasts increase in size during pregnancy (often by at least a cup size).

For some women, this may occur slowly throughout the pregnancy, but for others it occurs intermittently.

If your breasts go through periods where they grow quickly, you may find they start to itch as the skin stretches.

If this happens, keeping the skin of your breasts well moisturised can help.

Some women develop stretch marks on their breasts, but these usually fade with time.

As your breasts grow and change during pregnancy, it’s important to ensure they’re well supported.

Being professionally measured helps you to find the right size bra for you to help optimally support your breasts.

Breast Changes #3: More  Veins

Most women notice the veins on their breasts become more visible during pregnancy.

This is caused by increased blood flow to your breasts during pregnancy.

You may also notice this after your baby is born too, especially when your milk comes in or your breasts are engorged.

Breast Changes #4: Nipple Changes

As a part of your breasts preparing for breastfeeding, you may notice some changes to your nipples too.

For example, it’s common for women to notice their nipples and areolas becoming darker during pregnancy.

Some women notice their nipples increasing in size during pregnancy too.

Breast Changes #5: Leakage

Many pregnant women are unaware their breasts start making colostrum from as early as week 16!

For this reason, you may notice your breasts occasionally leaking this sticky yellow coloured substance.

If this happens, wearing breast pads can help to prevent it soaking through to your clothes.

Breast Changes #6: Lumps and Bumps

Some women notice lumps in their breasts during pregnancy.

Common causes of such lumps include cysts, fibroadenomas (fibrous tissue), and galactoceles (cysts filled with milk).

These lumps are usually benign and nothing to worry about but it’s always worth being checked out by your doctor.

Breast Changes #7: Montgomery’s Tubercules

You may notice the small bumps around your areaolas becomes more prominent during pregnancy too.

These little bumps are known as Montgomery glands and they secrete an oil to discourage bacteria and help keep your nipples and areolas lubricated and protected.

Important Tip: Breast Exams

It’s important to continue regular breast checks during pregnancy. If you feel or notice anything unusual, mention it to your doctor.

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Renee Kam is a mother of two daughters, an International Board Certified Lactation Consultant (IBCLC), a physiotherapist, author of 'The Newborn Baby Manual' and an Australian Breastfeeding Association Counsellor. In her spare time, Renee enjoys spending time with family and friends, horse riding, running and reading.


  1. How about changes in color just outside your nipples? Like dark patches with white spots.. (i am white if it makes a difference, and the patches almost match the nipple color but are a bit more brown then the dark pink of the nipple) i am almost 29 weeks. Is this normal?

  2. My nipples are sore, there’s bumps on the aerola lower abdomen is hurting im bloated & I just got back 4 negative tests I took last week? Very tired and felt a little lightheaded earlier. Im confused lol

    1. Your false negative ..could be a positive ..may not show thru urine did mine may have to draw blood from the hospital ..happen to me a few times ..And I was Positively Preggos

    2. My Breast aren’t sore but I see the bumps on my areola. I’m extremely fatigued, nauseous, low full back pain, stomach cramps and frequent urination and I took four tests all negative

  3. My pregnancy is 19weeks nd am feeling sharp pain under my left breast nd sometimes sharp pain around the nipples and my nipplles are leaking can anyone help me please

  4. Hi, my last period was on the 24 May 2015 and i think i ovulated on the 06June 2015, we did the baby dance on the 5,6,7 and 8 June. Now im having these pregnancy signs. Sore bigger breasts, eat a lot, a lot of gas, slight pain on my lower left side, im expecting my period on de 20th June 2015 and i did a test today but it came back negative.. is it possible that i might be pregnant? pls help out

    1. My breast usually get sore right before I am about to get my period.. I don’t know what brought it on because it never used to happen, but now it does. I’m 23 and already had 2 boys. When you’re trying for a baby, it’s real easy to psyche yourself out and believe you’re experiencing pregnancy symptoms. For me and my first pregnancy, I was DEAD tired before I found out.. I’d sleep for 12 hrs a day and still wake up sleepy. And not to mention very nauseous. I couldn’t wake up and feel hungry for anything. And yes my breasts were very swollen. You don’t normally “eat a lot” until the 2nd-3rd trimester because you’re too busy throwing up. Gas, I never heard of that myself, might be from the over eating, lol And pain, I did cramp too, but that was in my lower uterus area. Tell us, are you pregnant? It’s June 29th now.

    2. Might still be too early. You normally don’t show up positive on test til like 6 weeks preggo
      Mommy of 5

  5. I believe this my first experience being pregnant im having all the signs cant sleep on my stomach i took two test that came back negative in second week now im on my 4 week havent check miss my period.. What you think

    1. Take another test. I took a pregnancy test a few days before my missed period because I thought I was pregnant, and it came back negative. I waited a few weeks and took another (3 others actually lol) and they all came back positive. Taking a pregnancy test too early will probably make the test come back negative (a false negative). So I’d take another (or 2) to make sure.

  6. Hello I’m writing because I’m very confused I’m now 8 day later on my period and I took a test the day I was due on but got a negative test and I used clear blue too. I’m never later on my period so this is very unlike me in many ways normally a day early.
    I’m getting the sore tender boobie’s belly look’s bigger too. I’m so confused at the moment unreal. Many thanks if anyone could give me advise..

  7. I don’t even know if I’m pregnant or not me and my husband or kinda chicken to find out but if I were I’d be about 9 or so weeks . I’ve developed a lot bigger breast and these weird purple like stretch marks and veins as well plus the weird looking bumps. The other day also I noticed dark stool too. Among other symptoms like weird back and stomach twitches . I say it wouldn’t be possible just because I’m on BC but I know when I feel it’s not possible at all it happens . I just don’t know .

  8. I’m feeling pains in my both breast,although hv missed my perious already nd I eat a lot. But d bone of contention is that this pains in my breast, is it part of symtoms of pregnancy as well? Bcs hav already taken paracetamol for like 2days bt stil d same thing.

  9. i feel pain in my nipples and breast always lightheaded and my lower abdomen feeling pain in the morning almost all of the pregnancy symptoms i had experience but when i took home pregnancy test its negative.. and this is the thing i did not had a period for 5 months.. this month will be 6 months no period what should be the reason?

    1. I had the same experience about a year ago went into the Dr to find out what was going in and it turned out to be PCOS. I would call your OBGYN and set up an apt just to ‘ve safe

  10. I’m 27weeks gone, I notice about two month ago that my nipples were discharging blood, I went for test(breast scan) as directed by Dr and the result was ok. Dr said d bloody discharge will stop after delivery. My concern now is hope it won’t affect breast feeding immediate after delivery? Because I’m planning for exclusive breast feeding

  11. My breasts weren’t too bad but the nipples would get so erect and painful like a blow torch on them most of my pregnancy. HOT cloths or hot pads were only thing that worked and hurt to touch. And achy breasts were less present but happened. Worse than growing them in puberty. My husband was amazing when all I could do was cry and wait for the heat to help

  12. i am 28 weeks pregannat. But my breasts became 38 from 34 and 3/4 of breast is covered with black areola also have black stretch marks on them. Is it normal

  13. I had my last period on 10/26… I had spotting that lasted for 2 days but no period in November…(I took 4 tests before all negative) it’s now 12/14 and I noticed last week that I have the linea nigra from my belly button to my pubic area and I’m on my menstrual now I had bach aches, bloating, gas, and food diversion. I had my first pregnancy almost 4 years aga and I am lactating. Could I still be pregnant

  14. Is it possible to have a period during pregnancy? My body has been going through the changes and my bra size jumped up two sizes.

    1. Yes! I did through my entire pregnancy! When i cramped and bled they said i was losing the baby! Turns out i have 2 uteruses!

  15. For me some of the early signs, even before the positive test, we’re extreme thirst, headaches, strange dreams. After 2 false negatives I Finally got a positive. It was around that time that the extreme exhaustion, nausea and then sore breasts kicked in. My breasts also started getting bigger after that. I’m nearly 7 months now and for a while my symptoms died down .. now I have heartburn and Bach aches and veins showing on my breasts plus they leaked a couple times.. oh and of course feeling the baby kick is a great feeling 🙂

  16. I was on birth control like the injection were they give you for preventing pregnancy..i was on that for i think i was doing that for about 6 years…now i stopped and its been four months now i’m not on periods and theres liquid coming out on my breast…both my nipples…what does it mean?

  17. Can someone please help me!! I’m 21, in the army currently deployed I think I got pregnant the day before I left home, I would now be 10 weeks pregnant. My nipples are always hard and have those Montgomery tubercles on them which I didn’t have before and I can see a map of veins throughout my whole chest! I don’t have access to pregnancy tests. I have noticed my stomach seems bloated all the time lately and I have frequent mild headaches and lots of mid back pain that is new to me. Could these symptoms be from stopping birth control and being in a new country or am I pregnant??

  18. I have no leakage. But my urine is bouncing between orange and a green tint. I think I’m 3mnths because I swear I feel/see movement in my stomach. I’m tired angry always starving but everything is making me nauseous especially pizza and greasy foods. Ive had bumps around my areolas my whole life so that’s no change I’m not lactating they aren’t sore and havnt grown. But ive gained obvious weight and for the best description I look pregnant. But I truly don’t think I am. It doesn’t feel like it. What do you think….

  19. € I am 9 months pregnan. Just getting out the shower I noticed a huge bump on my brest that looks like a second nipple. Then all of a sudden some whiteish stuff comes out with blood. What do I do?

  20. I missed my period last month, I took two pregnancy test and they came back negative. I’m having lower back pains and my breast are sore around the sides. I’m bloated and sometimes I get mild headaches, my nipples are getting bigger, but no bumps on the areola. I’ve also experienced light spotting for about 2-3 days. Am I pregnant??

  21. I really need your help to understand I had unprotected sex during my periods and after periods and my breasts and head started aching and I had all pregnancy signs and I thought I was preggo but on March 2 thursday my periods came and they lasted for 4 days and that is not the way I have them they always last 6 or 7 days I took a second pregnant test and it was negative until now I feel all the signs of pregnancy and I tell myself maybe I might be preggo but when I remember the two negative pregnancy test I feel that I can never be pregnant so I am really preggo because I took the test too early advice me please I really want to be preggo

  22. i have a 10mnths old daughter and i’m breastfeeding her. i have an implant my problem is that i feel shacking like a baby kicks on my stomach. is it possible to become pregnant while you have implant?

  23. I had sex on 3rd of may 2017 during my ovulation, on 19th of the same may I had spotting of dark brown color. I’m still experiencing lower back pain, abdominal cramps, bumps around areola, dizziness, frequent urination and slight headache, sleep is comfortable only on my left side . But my pregnancy test shows negative. Can I be pregnant with all these Signs?

  24. It’s about a week before my period but for the last week iv had sickness, headaches, sore stomach, bloated, always tired, sore boobs and lots of bumps on them and also they look darker.

  25. I am baffled, my breasts are bigger and nipples slightly darker and larger, they were extremely sore for over a month, chronic heartburn which has eased, occasional feeling of nausea, lots of gas but all tests have come back negative, I’m sure something is going on, I’m wondering if it just that my body has not produced enough hormones because I also had what seems like a period

  26. Hi. I think this is my first time to experience having bloated belly though I eat less. I missed my period and now is the tenth day. I can see white pimple like on my aerola and also a brown line from the button of my tummy towards pelvic bone. Am I pregnant? I took 2 PTs already and it tirns out negative. Im too tired expecting and wanted to ignore these signs but I don’t wanna harm my baby if ever I am pregnant.

  27. Hi everyone, I’m Jess
    Long shot but wondering if anyone has some advice or same symptoms as me.
    I had my Mirena out on the 26th of June, had it in for about 3yrs, had no withdrawal bleed then no period till the 30th of August for 6 days. Me and DH did the BD everyday or every other day for 10days. ( I don’t know if I ovulated but definitely ewcm in those days) I’ve had pains and cramps for 16days and no period. In fact I could be a day late right now. Testing with hpt’s all negative. I have darker Areolas, veins starting to come up, very heavy feeling in them,nausea, no appetite then starving, bloated all the time, cramping dull aches in lower back and the sharp in the left side. Hot flushes and my temp the last few days has been 36.2 up to 37.2 also clear watery cm maybe slightly yellow?Could I be pregnant or maybe side affects still from the Mirena? Tested today bfn. Thanks everyone. Baby dust to all!! Xx

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