Maternity Swimwear: What to Wear in the Pool When Pregnant

Maternity Swimwear

As a mum who’s been through pregnancy a few times, I know firsthand how tricky it can be to find comfortable and flattering swimwear when you’re expecting.

Your body is changing in amazing ways, but that can make shopping for a cossie feel like a right faff!

Not to worry though – I’m here to share my top tips for finding the perfect maternity swimwear to keep you cool and confident by the pool or at the beach.

From one-pieces to bikinis and everything in between, I’ll walk you through all your options so you can make a splash in style during your pregnancy.

Your Changing Body

When I was pregnant with my first, I remember being shocked at how quickly my body started changing – especially in areas I wasn’t expecting!

Suddenly my chest was spilling out of my usual swimsuits and my growing bump made everything feel too tight.

Here’s what to keep in mind as your body transforms:

Breast Changes

For many of us, one of the first noticeable changes is in our breasts. They often become larger and more sensitive, which means you’ll likely need more support and coverage than usual. I went from barely filling an A-cup to suddenly needing a C or D. Look for swimwear with adjustable straps and built-in support to accommodate your changing chest.

Growing Bump

Of course, your expanding belly is the most obvious change. As your bump grows, you’ll need swimwear that stretches and adapts. Ruching and gathered fabric can be your best friend here, allowing the material to grow with you. I found high-waisted bottoms or one-pieces with tummy control panels helped me feel secure and supported.

Overall Weight Gain

It’s totally normal to gain weight all over during pregnancy, not just in your bump. You may notice your hips, bum, and thighs filling out. Don’t be afraid to size up in your swimwear – comfort is key. I actually found going up a size or two in regular swimwear worked well in my early months before switching to maternity-specific styles.

Skin Sensitivity

Your skin may become more sensitive during pregnancy. I developed a few itchy stretch marks and found chlorine irritated my skin more than usual. Look for swimwear made from soft, breathable fabrics and consider styles that offer more coverage if you’re feeling sensitive.

Types of Maternity Swimwear

Types of Swimwear in Pregnancy

There are so many great options for maternity swimwear these days – gone are the frumpy styles of the past! Here’s a rundown of the main types to consider:

One-Piece Swimsuits

The classic one-piece is often the easiest option for mums-to-be. They offer full coverage and support, perfect if you’re feeling a bit self-conscious about your changing shape. Look for styles with:

  • Ruching or gathering at the sides to accommodate your growing bump
  • Built-in shelf bras or moulded cups for breast support
  • Adjustable straps to customise the fit
  • Tummy control panels for extra support

I practically lived in my black ruched one-piece during my second pregnancy – it was so comfy and made me feel put-together even on days when I felt like a beached whale.

Tankinis

Tankinis offer the coverage of a one-piece with the convenience of separates. The longer top covers your bump while still giving you easy bathroom access (trust me, this becomes important!). Key features to look for:

  • Longer length tops that won’t ride up
  • Ruched sides for a flexible fit
  • Mix-and-match options to get the perfect top and bottom combo
  • Built-in support in the top

I loved my floral print tankini for aquanatal classes – the patterned top disguised my bump when I felt self-conscious, but I could still show it off proudly on better days.

Bikinis

Yes, you can absolutely rock a bikini while pregnant! Many women love showing off their bumps in a two-piece. If you go this route, consider:

  • High-waisted or fold-over bottoms for bump support
  • Tops with underwire or moulded cups for breast support
  • Halter or thick-strap styles to distribute weight evenly
  • Mix-and-match sets to accommodate different sizing needs

I felt like a proper yummy mummy in my polka dot bikini during a babymoon trip – it was so liberating to embrace my new curves.

Swim Dresses

For maximum coverage and a bit of extra style, swim dresses can be a great option. They typically feature a one-piece suit with an attached skirt. Look for:

  • Empire waist styles that skim over your bump
  • Built-in shorts for modesty and comfort
  • Adjustable straps and supportive tops
  • Flowy skirts that move with you in the water

I loved my navy swim dress for family pool days – I felt covered up enough to chase after my toddler without worrying about wardrobe malfunctions.

Choosing the Right Size

What to Wear Swimming When Pregnant

Sizing can be tricky when you’re pregnant, as your body is constantly changing. Here are some tips I’ve learned:

  • Start by going up one size from your pre-pregnancy size
  • Look for brands that offer specific maternity sizing
  • Consider buying separates so you can mix sizes for top and bottom
  • Don’t be afraid to size up again in your third trimester
  • Remember that swimwear often stretches in water, so it should feel snug when dry

I found it helpful to try on a few different sizes and styles each trimester, as my needs changed throughout pregnancy. Many shops offer free returns, so don’t be shy about ordering multiple options to try at home.

Fabric Considerations

The material of your swimwear can make a big difference in comfort and durability. Here’s what to look for:

Stretchy Fabrics

Opt for fabrics with plenty of stretch, like:

  • Nylon/spandex blends
  • Polyester/elastane mixes
  • Four-way stretch materials

These will grow with you and bounce back into shape, meaning you can wear them throughout your pregnancy and even postpartum.

Quick-Drying Materials

No one wants to sit around in a damp suit! Look for quick-drying fabrics like:

  • Microfiber
  • Polyester blends
  • Nylon

These will help you feel comfortable even after multiple dips in the pool.

Sun Protection

Many maternity swimsuits now offer built-in UV protection. This can be especially helpful if you’re pregnant during summer months when your skin may be more sensitive to the sun. Look for suits with UPF 50+ ratings for maximum protection.

Chlorine-Resistant Fabrics

If you plan on doing a lot of swimming, consider chlorine-resistant materials. These will hold up better to frequent use and won’t fade as quickly. Brands like Speedo often offer chlorine-resistant options.

Supportive Features to Look For

Pregnant woman in swimming pool

Extra support is crucial when you’re pregnant. Here are some features that can make a big difference:

Adjustable Straps

Straps that can be lengthened or shortened allow you to customise the fit as your body changes. Look for wide straps that won’t dig into your shoulders.

Built-In Bras

Many maternity swimsuits come with built-in shelf bras or even underwire support. This can be a godsend for larger-chested women or those experiencing breast tenderness.

Tummy Control Panels

While you certainly don’t need to hide your bump, some women appreciate the extra support of a tummy control panel. These can help you feel more secure and comfortable in the water.

Ruching and Gathering

Ruched fabric, especially around the sides and tummy, allows your swimsuit to grow with you. It also provides a flattering, textured look that can camouflage any areas you’re feeling self-conscious about.

Styling Tips for Confidence

Feeling good in your swimwear is about more than just the suit itself. It can even boost your confidence if you get it right.

To start with, don’t forget the power of accessories. A cute sun hat, stylish sunglasses, or a flowy cover-up can elevate your whole look and help you feel more put-together.

Don’t be afraid to mix patterns and colours either. A solid bottom with a patterned top (or vice versa) can be very flattering and allow you to customise your look.

Next. Layer up! A sheer kaftan or pretty sarong can provide extra coverage when you want it, while still showing off your beautiful bump. I loved throwing on a colourful kimono-style cover-up for trips to and from the pool.

Bold prints and patterns can be very flattering during pregnancy. They draw the eye and can help camouflage areas you might feel self-conscious about.

Finding the right maternity swimwear might take a bit of trial and error, but with these tips, you’ll be splashing in style in no time. Enjoy this special time and don’t let worries about what to wear keep you from making a splash.