Pregnant, feeding or somewhere in between and trying to work out how many maternity bras you actually need? This guide covers what to buy, roughly how many you may need and when it makes sense to get fitted. Because your body can keep changing throughout pregnancy and feeding, a comfortable fit now matters more than finding one supposedly perfect bra for every stage.
At Nala, the distinction is even smaller: both maternity styles are wire-free nursing bralettes with feeding clips, so they are designed to work during pregnancy and breastfeeding.
The shopping list, screenshot away:
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First trimester: Keep wearing your current bras while they still feel comfortable. If the band or cups become tight earlier, remeasure rather than waiting for a particular week.
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Around 16 weeks: Get fitted and start with two supportive maternity bras if your current bras no longer fit comfortably.
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Third trimester: Check the fit again. If you plan to breastfeed, make any replacements or additions nursing-friendly. You might also want one sleep bra for overnight support or breast pads.
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After baby arrives: Refit once your milk comes in. Top up if the band or cups have shifted again.
A quick note before we continue: This is fit and comfort guidance, not medical advice. Anything about milk supply, mastitis or blocked ducts is a job for your GP, midwife or lactation consultant.
Maternity Bra vs Nursing Bra: What's the Difference?
The terms overlap, but there is a practical difference. Maternity bras are designed to accommodate changes during pregnancy, while nursing bras add feeding access through clips, drop cups or pull-aside designs. Many nursing bras can also be worn during late pregnancy, so you may not need two completely separate sets.
|
Feature |
Maternity bra |
Nursing bra
|
|---|---|---|
|
Main job |
Support through pregnancy growth |
Feeding access |
|
Cup style |
Full cup, stretch fabric |
Drop cups or clips |
|
Band |
Wider, often multiple hook rows |
Multiple hook rows for post-partum shift |
|
When you'd wear it |
From around 16 weeks |
Late pregnancy through weaning |
If you're not sure whether you need both, you probably don't. A well-designed nursing bra can carry you from the third trimester right through feeding.
When to Buy Your First Maternity Bra
Around 16 weeks is a solid time to get fitted. The Australian Breastfeeding Association notes that most breast changes have usually happened by then, so you're not buying blind. Before that, your existing bras will probably still do the job.
Changes can show up in the band, cups or both. If the underband digs in, rides up at the back or still feels tight on the loosest hook, remeasure. Do the same if breast tissue is spilling from the cups or the bra feels restrictive anywhere.
Don't buy your whole maternity wardrobe at 20 weeks. Your body has months of changing left to do. Two or three good bras now, more later when you know what your third trimester and feeding shape looks like. If you want to check where you sit today, the Nala bra size chart walks you through measuring at home.
How Many Maternity and Nursing Bras Do You Need?
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During pregnancy: Start with 2 to 3 supportive bras that fit you now.
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Late pregnancy and early feeding: Choose nursing styles for any replacements or additions. One or two sleep bras may be useful if you want overnight support.
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After your milk comes in: Remeasure and add to your rotation only if your fit or laundry routine calls for it.
Pregnancy, Birth and Baby suggests 2 to 3 maternity bras because leaking milk means changing your bra more often than you'd expect. Add in newborn feeding frequency. The ABA says 8 to 14 times in 24 hours in the early months. That's why the rotation matters. One in the wash, one on, one ready to go.
Maternity Bra Sizing: Measuring a Body That's Still Changing
Your measurements may continue changing throughout pregnancy and after birth, so treat your current size as a useful starting point rather than a permanent answer.
Nala uses both band-and-cup sizing and XXS to 6XL alpha sizing. The available cup range depends on the style, so check the size selector on the individual product page before ordering. Measuring comes down to two numbers: your band size (snug under the bust) and your bust size (across the fullest part). If you are comparing nearby band-and-cup options, the Nala sister sizing explains how to find a similar cup volume with a different band size.
Check the fit again during the last trimester and after your milk comes in. Buying everything too early can leave you with bras that no longer suit your postpartum shape. Dual sizing and stretch fabrics can accommodate some changes, but it is still worth remeasuring when the fit feels different.
What to Look For in a Maternity or Nursing Bra
Ignore the marketing. These are the features that actually earn their spot, drawn from the ABA's guidance on choosing a maternity bra.
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One-handed nursing clips or drop cups. You'll be holding a baby. Two-hand fastenings are a no.
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Multiple hook-and-eye rows. More rows means more adjustment as your band shifts through pregnancy and post-partum. Nala’s Maternity Support Wirefree Bralette has 3-row hooks, while the Maternity Comfort Wirefree Bralette has a 4-row hook-and-eye closure.
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Structured wire-free support. Look for a firm, adjustable band, supportive cups and an inner sling that helps lift and hold the breast.
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Full cup drop styles. Coverage matters when everything is bigger and more sensitive.
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Soft, breathable fabric. Skin gets more sensitive during pregnancy and feeding. Anything scratchy will drive you up the wall.
Wire or Wire-Free: What Works Through Pregnancy and Feeding
Rigid underwires are generally not recommended during pregnancy or breastfeeding because breast size and fullness can change throughout the day. If a stiff wire presses against full breast tissue, it can cause inflammation and increase the risk of mastitis. Wire-free styles avoid that pressure and are the focus of Nala’s maternity range.
Wire-free support depends on the bra’s construction. Nala’s Maternity Support Wirefree Bralette combines a snug underband, fully lined supportive cups and a hidden inner sling. The Maternity Comfort Wirefree Bralette uses a hidden side sling for lift and forward projection.
Some maternity bras use flexible, low-gauge wires designed to move with the body. If you prefer one of these styles, have the fit checked carefully and make sure the wire never presses on breast tissue. Otherwise, browse Nala’s wire-free bras for a softer option.
Sleep and Feeding Bras: Are They Worth It?
If you leak or prefer some support overnight, a soft nursing bra may be useful. If you are comfortable without one, it is optional.
A soft nursing bra can provide light overnight support, make night feeds easier and help keep breast pads in place. Crossover and sling designs feel more like a supportive camisole than a structured bra, which is a fair trade for how comfy they are overnight. One or two in rotation is enough for most people.
The test. If you're waking up in a wet t-shirt, add a second one. If you're not, save the money.
Plus Size and Fuller Bust Maternity Bras
Wire-free support at fuller cup sizes comes down to structure. Look for a firm, adjustable band, supportive cups and an inner sling. The band carries much of the weight, while the cups and sling help lift, contain and shape the breast.
Across Nala’s maternity collection, sizing spans bands 8 to 24 and B to J cups, although availability varies by style and colour. The Maternity Support Wirefree Bralette uses dual cup sizing and includes feeding clips, a hidden inner sling, fully lined supportive cups, adjustable straps and 3-row hooks. The Maternity Comfort Wirefree Bralette covers B to H cups and uses a hidden side sling with a 4-row hook-and-eye closure.
Frequently Asked Questions
When should I start wearing a maternity bra?
Around 16 weeks is the usual sweet spot, because most breast changes have happened by then according to the Australian Breastfeeding Association. Before that, your existing bras are probably fine. The first sign you need to switch is usually the band getting tight, not the cups.
Can I wear my normal bra during pregnancy?
Yes, until it stops being comfortable. Once the band is digging in on the loosest row, or your cups are running out of room, it's time for a maternity bra. Wire-free is generally kinder to changing tissue than a fixed underwire.
Is it safe to sleep in a nursing bra?
Yes, if it's a soft, wire-free sleep nursing bra designed for it. Skip anything with an underwire or tight elastic overnight. A crossover or sling style gives easy access for night feeds and holds a leak pad without pressing on tissue.
How do I know when to size up again?
Watch the band first. Remeasure if the band still digs in on the loosest hook, rides up at the back or no longer sits securely. Cup spilling, gaping or pressure on breast tissue are also signs that the fit has changed. Your band and cup can change independently, so check both rather than automatically going up one complete size.
Do I need a separate pumping bra?
Usually, yes, if you want to pump hands-free. A nursing bra with drop cups provides feeding access, but it may not hold pump flanges securely unless it has a pumping function or compatible insert. If you pump regularly, a dedicated pumping bra is useful. For occasional pumping, a nursing-bra pumping insert may be enough.
How do I wash and care for a nursing bra?
Cold wash in a lingerie bag, hang to dry. Skip the dryer, skip fabric softener, and don't wring them out. Rotating 2 to 3 bras means each one gets a rest between wears, which keeps the elastic and structure lasting longer through the whole feeding stretch.
Ready to Shop? Start Here
You've got the plan. When you're ready, browse the maternity bras collection and pick from the shopping list above. If sizing is where you're stuck, the Nala fit guide walks you through measuring and picking your size. Our Fit whisperers can help if you'd rather ask a human.
