Let’s be honest, there’s a special kind of frustration that comes with standing in front of your wardrobe at five months pregnant, realising that absolutely nothing fits the way it used to. Your favourite jeans? A distant memory. That cute wrap dress? It now ends somewhere around mid-thigh. And the worst part? You don’t want to spend a fortune on clothes you’ll wear for a handful of months.

Here’s the good news, lovely: you genuinely don’t have to. In 2026, the maternity fashion game in Australia has come a long way, and there are some seriously gorgeous, comfortable, and affordable options out there. We’re talking dresses that grow with your bump, work for the school run and a baby shower, and won’t make your eyes water at the checkout.

We’ve done the hard yards for you, researching, comparing, and yes, actually bump-testing, to bring you 15 of the best maternity dresses in Australia for 2026, all under $100. Whether you’re after something for a sweltering Aussie summer, a cosy winter layer, or a versatile everyday staple, there’s something here for every mum-to-be and every budget. Grab a cuppa, get comfy, and let’s find your new favourite dress.

What to Look For in Maternity Dresses (Before You Buy)

Before we dive into the good stuff, it’s worth knowing what actually makes a maternity dress worth your money. Not all womens maternity dresses are created equal, and a few key features separate the ones you’ll live in from the ones that end up shoved at the back of the drawer.

Stretch and recovery: The best maternity dresses use fabrics with good four-way stretch, think viscose blends, elastane, or modal. You want fabric that expands with your bump but bounces back, so it stays flattering from your first trimester right through to those final weeks.

Length and coverage: A common pregnancy surprise is that hems ride up as your bump grows. Look for dresses with a bit of extra length, or styles cut specifically with a longer front panel to account for your growing belly.

Nursing-friendly design: If you’re planning to breastfeed, a dress that does double duty as a nursing dress (with wrap fronts, button details, or discreet access) is worth its weight in gold. You’ll get far more wear out of it postpartum.

Breathability: Australian summers are no joke, and pregnancy runs you hot at the best of times. Natural fibres like cotton, linen blends, and bamboo are your friends here.

Care instructions: Let’s be real, you want something you can chuck in the wash without fuss. Avoid dry-clean-only if you can help it.

The Best Cheap Maternity Dresses Under $50

If you’re after genuinely cheap maternity dresses that don’t look or feel cheap, this is where Australian budget retailers really shine. Kmart, Target AU, and Big W have all stepped up their maternity ranges in 2026, and the quality-to-price ratio is honestly impressive.

1. Kmart Maternity Jersey Midi Dress, $25
A genuine standout. This stretchy jersey midi comes in a range of colours, has a flattering ruched side, and grows beautifully with your bump. The fabric is soft, breathable, and machine-washable. At this price, you could grab two.

2. Target AU Maternity Tee Dress, $35
The ultimate everyday throw-on. Casual, comfortable, and perfect for those days when getting dressed feels like an Olympic event. Pairs brilliantly with sneakers or sandals.

3. Big W Maternity Wrap Dress, $39
A true workhorse. The wrap design adjusts as you grow and doubles as a nursing dress later. Lovely for a casual lunch or dressed up for an occasion.

4. Kmart Maternity Singlet Dress, $22
Made for summer. Lightweight, sleeveless, and ideal for keeping cool when the mercury climbs. A no-fuss option for the warmer months.

5. Target AU Linen-Blend Maternity Shift, $45
If you want something a touch more polished, this linen-blend shift looks far more expensive than it is. Breathable and relaxed, it’s a brilliant warm-weather pick.

Best Maternity Dresses for Work and Occasions

Whether you’re heading into the office, attending a wedding, or simply want to feel a little more put-together, these mid-range maternity dresses australia mums swear by deliver style without the designer price tag.

6. David Jones Maternity Ponte Dress, $89
Structured, sophisticated, and office-ready. The ponte fabric holds its shape, smooths everything beautifully, and feels reassuringly substantial. A go-to for working mums-to-be.

7. Cotton On Body Maternity Slip Dress, $59
Effortlessly chic. Layer it over a tee in cooler weather or wear it solo in summer. The bias cut is endlessly forgiving and surprisingly flattering across all trimesters.

8. Target AU Maternity Shirt Dress, $55
The button-through front makes this a fantastic nursing dress down the track. Smart enough for work, relaxed enough for the weekend. Genuinely great value.

9. Big W Floral Maternity Maxi, $49
For baby showers, garden parties, or just feeling lovely. The flowing maxi length and feminine print make this an occasion-worthy piece that costs less than a tank of petrol.

10. David Jones Maternity Wrap Midi, $95
A more premium feel with a beautiful drape. The true wrap design adjusts perfectly and transitions seamlessly into breastfeeding. Worth the splurge if you want one dress to do it all.

Best Maternity Dresses for an Aussie Summer

An Australian summer while pregnant is its own special challenge. Between the heat, the humidity, and that pregnancy glow (read: sweat), you need dresses that keep you cool and comfortable. These inexpensive maternity dresses are made for our climate.

11. Kmart Cotton Maternity Sundress, $30
Pure summer joy. Lightweight cotton, breezy fit, and a cheerful selection of prints. Perfect for the beach, the park, or a backyard barbie.

12. Cotton On Maternity Tiered Midi, $49
The tiered design adds movement and airflow, which your overheating self will thank you for. Comfortable, casual, and effortlessly cute.

13. Target AU Bamboo Maternity Dress, $42
Bamboo fabric is naturally breathable, moisture-wicking, and beautifully soft against sensitive pregnancy skin. A standout for hot, sticky days.

Best Maternity Dresses for Winter Layering

For our southern mums or anyone due over the cooler months, a good maternity maternity dress that layers well is essential. The trick is choosing pieces you can build on without feeling like a beach ball wrapped in wool.

14. Big W Long-Sleeve Maternity Jersey Dress, $39
A cosy staple. Long sleeves, midi length, and a soft jersey fabric make this perfect under a coat or with tights and boots. Layer-friendly and forgiving.

15. Cotton On Body Ribbed Maternity Dress, $54
The ribbed knit hugs your bump in the best way and pairs beautifully with a denim jacket or oversized cardigan. A modern, comfy winter pick that takes you from day to night.

How to Make Your Maternity Dresses Last Longer

One of the smartest moves you can make is choosing pieces that work hard for you, before, during, and after pregnancy. Here are a few trusted tips to stretch your maternity wardrobe (and your budget) further.

Choose nursing-friendly styles: Wrap dresses, button-throughs, and shirt dresses can carry you well into your breastfeeding journey, meaning you’re getting months of extra wear from a single purchase.

Buy quality basics, supplement with budget: Invest a little more in one or two versatile pieces (like that David Jones wrap midi) and fill the gaps with bargains from Kmart and Big W.

Wash with care: Cold wash, gentle cycle, and air-drying will keep stretch fabrics in good nick. Avoid the dryer where you can, high heat is the enemy of elastane.

Size up thoughtfully: Most maternity dresses are designed to accommodate a growing bump, so you generally don’t need to size up. Stick to your pre-pregnancy size unless the brand advises otherwise.

Accessorise to refresh: A different cardigan, scarf, or pair of shoes can make the same dress feel brand new, handy when your wardrobe is intentionally minimal.

mum.com.au Approved: Our Top Picks for 2026

After all our research and bump-testing, here are the standouts we’d happily recommend to any Aussie mum-to-be in 2026:

Best Overall: Big W Maternity Wrap Dress ($39)
Affordable, flattering, nursing-friendly, and genuinely versatile. It ticks every box and won’t break the bank. If you buy one dress this pregnancy, make it this one.

Best Budget Buy: Kmart Maternity Jersey Midi ($25)
Unbeatable value. Soft, stretchy, and available in multiple colours, you’ll find yourself reaching for it constantly.

Best Splurge (Still Under $100): David Jones Maternity Wrap Midi ($95)
For when you want to feel a little fancy. Beautiful fabric, a flattering cut, and breastfeeding-ready for the months ahead.

☀ Best for Summer: Target AU Bamboo Maternity Dress ($42)
Cool, soft, and kind to sensitive skin, perfect for surviving an Aussie heatwave with a bump.

❄ Best for Winter: Cotton On Body Ribbed Maternity Dress ($54)
Stylish, cosy, and endlessly layerable. A modern favourite for cooler-weather pregnancies.

Frequently Asked Questions

The Bottom Line

Pregnancy is expensive enough without blowing your budget on a wardrobe you’ll only wear for a few months. The brilliant news is that in 2026, you genuinely don’t have to choose between comfort, style, and affordability, Australian retailers have delivered on all three.

If we had to pick just one, the Big W Maternity Wrap Dress ($39) is our standout for its unbeatable mix of value, versatility, and nursing-friendly design. For the tightest budgets, you simply can’t go wrong with the Kmart Maternity Jersey Midi ($25), and if you want to treat yourself, the David Jones Wrap Midi ($95) delivers a more luxe feel without tipping over the $100 mark.

Whatever you choose, remember this: you deserve to feel comfortable and confident throughout your pregnancy. Buy what makes you feel good, don’t stress about having a huge wardrobe, and enjoy this special (if sometimes uncomfortable) season. You’ve got this, mama.