Your body goes through several changes during pregnancy and after childbirth, and finding a comfortable bra during this time can be challenging. Your usual bra may start feeling tight, your cup size may change, or the band may no longer provide the support you need. Choosing the right nursing bra becomes especially important when you want everyday comfort and convenient access for breastfeeding.
At Kiids Kingdom, we understand that maternity and postpartum essentials should make your daily routine easier. This nursing bra size guide explains how to measure yourself, recognise a good fit and choose a nursing bra that accommodates your changing body.
Why Does Your Nursing Bra Size Change During Pregnancy?
During pregnancy, hormonal changes prepare your breasts for breastfeeding. Your breast size, shape and fullness may change, while your ribcage measurements can also vary. After delivery, further changes may occur as your milk supply develops and your breastfeeding routine becomes established.
Because of these changes, the bra size you wore before pregnancy may no longer feel comfortable.
Here are some common reasons your nursing bra size may change:
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Breast growth: Your cup size may increase as your breasts change during pregnancy.
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Changes around the ribcage: Your band size may change, affecting how securely the bra fits.
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Fluctuating breast fullness: Your breasts may feel fuller at certain times, particularly during the early stages of breastfeeding.
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Changing comfort needs: You may prefer softer fabric, stretchable cups or easier feeding access as your routine changes.
Rather than relying only on your pre-pregnancy size, measure yourself again when your current bra starts feeling uncomfortable.
How to Measure Your Nursing Bra Size at Home
You can measure yourself at home using a soft measuring tape. These measurements provide a starting point, but the final fit also depends on the bra's design and the manufacturer's sizing chart.
Step 1: Measure Your Underbust
Place the measuring tape around your ribcage, directly beneath your breasts. Keep it level across your back and comfortably snug without pulling it too tightly.
Record the measurement in centimetres or inches, depending on the sizing chart you plan to use.
Step 2: Measure Your Bust
Wrap the measuring tape around the fullest part of your breasts. Keep the tape level and avoid compressing the breast tissue.
Stand naturally while measuring. If one breast is larger than the other, make sure the bra you choose accommodates the fuller breast comfortably.
Step 3: Check the Nursing Bra Size Chart
Compare your measurements with the manufacturer's size chart to identify a suitable band and cup size.
Remember that sizing can vary between brands. A size that fits well in one design may feel different in another, so use the chart for the specific product you intend to purchase.
Step 4: Check the Fit Before Buying
If you can try the bra on, check the band, cups, straps and nursing clasps. When shopping online, review the product measurements, available sizes and return or exchange policy.
The bra should feel supportive without digging into your skin, squeezing your breasts or restricting comfortable movement.
How Should a Nursing Bra Fit?
A well-fitting nursing bra should provide support while allowing you to move comfortably and access the cups easily during feeding.
The Band Should Sit Comfortably
The band provides much of the bra's support. It should sit level around your torso without riding up at the back or digging into your skin.
If the band feels excessively tight or keeps shifting, reassess the size rather than relying on tighter shoulder straps to compensate.
The Cups Should Fit Without Pressure
Your breasts should sit comfortably inside the cups without spilling over the top or sides. Excessive gaps may indicate that the cup shape or size is not suitable for you.
Pay attention to pressure around the sides and underneath your breasts. Your nursing bra should not squeeze breast tissue or leave you feeling uncomfortable after wearing it.
The Straps Should Stay in Place
Adjustable straps help you customise the fit as your body changes. They should remain comfortably on your shoulders without repeatedly slipping or digging into your skin.
Nursing Clasps Should Be Easy to Operate
Feeding access is one of the practical features that distinguishes a nursing bra from a regular bra. Drop-down cups or front-opening clasps can make breastfeeding more convenient.
Choose a design that you can open and secure easily, preferably with one hand, while ensuring the straps and fabric remain comfortable.
Choosing a Nursing Bra During Pregnancy
You can start looking for a maternity or nursing bra whenever your existing bras begin to feel uncomfortable or you want to prepare for breastfeeding.
When choosing a nursing bra during pregnancy, consider these factors.
Look for flexible fabric. Stretchable materials can accommodate some changes in breast fullness while maintaining a comfortable fit.
Check the band adjustment. Multiple fastening positions can help you adjust the band as your body changes.
Avoid buying an excessively large size. A bra that is too large may not provide adequate support. Choose a comfortable fit for your current measurements and reassess it when necessary.
Consider future feeding needs. If you plan to breastfeed, nursing clasps and convenient cup access may be useful after delivery.
At Kiids Kingdom, we offer nursing bra options for mothers preparing for and managing their breastfeeding routines. You can browse our nursing bra collection to compare the available designs and sizes.
How to Choose the Right Nursing Bra After Delivery
After childbirth, your breast fullness may change as breastfeeding becomes established. A bra that fitted comfortably during pregnancy may need to be reassessed during the postpartum period.
Allow for Changes in Breast Fullness
Avoid choosing a bra that feels tight when your breasts are fuller. The cups and band should accommodate your current shape without creating uncomfortable pressure.
If your bra starts feeling restrictive, recheck your measurements rather than continuing to wear an unsuitable size.
Prioritise Comfort During Feeding
Breastfeeding can involve frequent feeding sessions throughout the day and night. Comfortable straps, accessible clasps and a suitable fit can make everyday use easier.
Choose Fabric That Feels Comfortable
Consider the fabric's softness, flexibility and suitability for your climate. The material should feel comfortable against your skin during extended wear.
Reassess Your Fit Regularly
Your measurements may change during the postpartum period. Recheck the fit if you notice tightness, cup overflow, slipping straps or a band that no longer sits securely.
If a bra causes persistent pain or uncomfortable breast pressure, stop wearing it and seek guidance from a qualified healthcare professional or lactation specialist.
Common Nursing Bra Sizing Mistakes to Avoid
Even with accurate measurements, a few common mistakes can make finding the right nursing bra more difficult.
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Relying only on your old size: Your body may have changed since your last fitting.
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Ignoring the band fit: A suitable cup size cannot compensate for a band that is too tight or loose.
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Choosing a much larger size for future growth: Excessively large cups may provide inadequate support.
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Overlooking feeding access: Complicated clasps can make frequent breastfeeding less convenient.
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Ignoring discomfort: Persistent pressure, digging straps or breast overflow are signs that you should reassess the fit.
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Assuming every brand fits alike: Always consult the relevant product's size chart.
Taking a few minutes to check these details can help you find a nursing bra that better suits your changing needs.
Other Essentials to Consider for Your Feeding Routine
Alongside a comfortable nursing bra, a few practical essentials can help you organise your feeding routine.
For example, our baby feeding pillow collection offers options you can explore when looking for additional positioning support during feeding. A feeding pillow should be used appropriately and should never replace holding and supervising your baby.
You can also browse our Mom Essentials collection to explore maternity and postpartum products in one place.
When comparing individual nursing bra designs, you can review our High Coverage Intimacy Nursing Bra for its listed features, available sizes and product details.
Frequently Asked Questions
1. How do I know my nursing bra size?
Measure around your underbust and the fullest part of your bust, then compare both measurements with the manufacturer's size chart. Check the actual fit as well, because sizing can vary between brands.
2. Should I buy the same bra size I wore before pregnancy?
Not necessarily. Pregnancy and postpartum changes can affect both your band and cup fit. Recheck your measurements and choose a bra that feels comfortable now.
3. When should I buy a nursing bra during pregnancy?
You can start looking when your existing bras become uncomfortable or when you want to prepare for breastfeeding. There is no single ideal time for everyone, and you may need to reassess your size after delivery.
4. How tight should a nursing bra be?
The band should feel secure without digging into your skin. The cups should accommodate your breasts without squeezing or excessive gaps, and the straps should remain comfortable during movement.
5. Can my nursing bra size change after delivery?
Yes. Breast fullness and body measurements may change after childbirth, particularly during the early stages of breastfeeding. Reassess your fit whenever your bra starts feeling uncomfortable.
6. Should I choose a wire-free nursing bra?
A wire-free nursing bra is an option if you prefer a flexible design. Whichever style you choose, make sure it fits properly and does not create uncomfortable pressure on your breasts.
7. How many nursing bras should I buy initially?
Choose a practical number that allows you to rotate bras between washes. You can add more once you understand which size, style and fit work best for your needs.
Find Your Nursing Bra at Kiids Kingdom
Choosing the right nursing bra is about more than matching measurements to a size label. You need a fit that accommodates your changing body, provides suitable support and makes feeding access convenient.
At Kiids Kingdom, we bring together nursing bra options to help you explore styles suited to your maternity and breastfeeding needs. Visit our nursing bra collection to compare the available options and find a design that works for your everyday routine.
