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Smaller breasts after breastfeeding

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I get questions from my readers on brasforsmallcups.com asking for advice on bra sizing because of their smaller breasts after breastfeeding.

These women tell me they have lost breast tissue after having their child or children. When I go through their sizes with them, they usually need a new bra size. Many of them wear an A, B or C cup and now need a smaller cup, like an AAA, AA, or A.

  • how will I know if I need another bra size?
  • how to measure my breasts?
  • which brands should I look for?

Breastfeeding your baby somehow does change your breasts
Photo by Katie Emslie on Unsplash

Women’s breasts are unique and so are their sizes. Many of us may need a different bra size because of changes during life. Things like weight loss, gaining weight, aging, childbirth can change the size of your underbust and breasts.

How will I know if I need another bra size?

You’ll know. That is because a bad-fitted bra is with you all day and evenings. Are you always pulling the bra up or down in the front?

If you’re not happy with your bra, or maybe never have been anyway, it’s time to measure your bra sizes.

This seems the logical thing to do. But in reality, women may stick way too long with their bad-fitted bras (happened to me).

woman measuring bra size
Take some time to really look at your bra

Smaller breasts after breastfeeding

  • we somehow stick to a cup size we are used to (even if it no longer fits us)
  • although we need only about 10 minutes of our time to check upon our sizes, it’s not on our priority list
  • women with small breasts need to look at a bra size chart that includes all small sizes (or you will just miss your size and go for something that’s close but not right for you!)

Having smaller breasts after breastfeeding is very common. And you cannot possibly be wearing the same bra size that you are used to.

Well, you can, but your bad-fitted bra is not giving you a good feeling. It doesn’t do any good for your confidence. You don’t feel that good in your clothes because of the bra that’s just not right.

How to measure my breasts?

Measuring your bra sizes is something every woman should do. For some, because of body changes, it would have to be a regular thing.

Show me Amazon measuring tapes for body »

Of course, you can ask someone else to measure your sizes. That’s fine. But for women with small boobs, there’s something very important to realize.

The common bra size charts usually start from cup A. If you are small breasted be sure to check a bra size chart including AAA, AA, and A cups. Maybe your underbust size has changed and so have your boobs. This could, for example, mean you would go from 38A to 40AA or 40AAA.

Always check your sizes in a chart including small cups

bra size chart small cups
Bra size chart sizes AAA – B

Show me Amazon measuring tapes for body »

Which brands should I look for?

I never liked wired bras. That was before I found out my best bra size and now I actually like this style very much.

Once you know your best bra size you could wear anything you like. If you wear the right bra size any style of bra can be good for you. It’s personal of course. But wearing the right bra size will make all the difference in the world.

Just one more thing about sizing you need to know.

It could be you would fit 2 bra sizes. When you are just in between two measurements you could actually fit different sizes. Try both sizes if needed.
I wear bras in 34AA, but I also wear 36AAA (cup size is the same but the band is a bit wider). I even have some 34A depending on the model and brand.

If you have any question about your bra size, please let me know. I’ll be very happy to advise.


Amazon AA cup bras »


Amazon A cup bras »


Amazon B cup bras »


Amazon C cup bras »


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