Generally, you should buy maternity clothes in your pre-pregnancy size. As maternity clothing provides extra room around the belly and bust, it gives you the comfort you need for your changing body. If you're in between sizes or are still unsure of what size to buy, consult our maternity wear sizing chart. Take measurements around the fullest part of your bust, your hips (under your bump), and your bump circumference, and compare these numbers to the sizing chart to find your ideal fit.
Cake Lingerie recommends your nursing bras be purchased about a month or so prior to your baby being born. Cake suggests a seamless nursing bras to start (about the 1st month), as your bust will fluctuate wildly as your body tries to regulate its flow of milk. Typically sized XS-XXL, they will accommodate your changing bust. The soft-cup or t-shirt bras, with or without flexible wire will be ideally suited about 4-6 weeks post birth when your bust fluctuations have somewhat stabilised. The Cake Nursing bras are ideal post birth, with each one fulfilling a specific purpose.
When it comes to the best maternity bras and the best nursing bras, there are endless options. You’ve got everyday nursing bras, sleep nursing bras, nursing bras with molded cups, pumping bras and extra-supportive nursing bras specifically made for women with larger busts. Yes, the cup runneth over with choices, but how do you know which one is right for you? Read on for the best nursing bras and the best maternity bras, plus shopping tips from The Bump’s go-to nursing and style experts, so you can find the perfect fit.
Dress right during pregnancy! Shop Thyme Maternity's collection of women's dresses made for pregnant women. Think pregnancy dresses perfect for any occasion and any season. For spring or summer, opt for a maternity maxi dress in a bright colour or print. Maternity gowns and party dresses are chic choices for work events and holiday get-togethers. Our maternity dresses are all made with soft fabrics to enhance your figure during and after pregnancy, while their pretty prints and hues dress up your wardrobe. 

Real mom review: “I bought this bra because I had a number of cute maternity dresses that needed a strapless bra, and at 25 weeks I cannot bear to wear underwire anymore, but there is no way I can go braless. This bra is so comfortable, offers great coverage, and has decent enough lift where I don't feel like I look sloppy. I bought two, and I may buy more after the baby as well because I just love it that much.” —Sarah via Motherhood Maternity

There's no exact science as to when you should start wearing maternity clothes. As every woman's body changes differently, you may not know when you need maternity clothing until your regular wardrobe starts feeling snug. A maternity band is a great piece to take you from the early stages of pregnancy to the end. It offers support for your growing belly, while giving you the coverage you may need as you transition from your regular clothes. Keep in mind that all maternity clothing sold on BestBuy.ca is designed to fit throughout pregnancy and after, so it's never too early (or late) to start stocking up on cute maternity tops, chic maternity dresses, and belly-hugging maternity bottoms.
La Leche League Convertible Strapless Nursing Bra slips under a strapless dress, halter or strappy tank for instant—but gentle—support. Clear straps are included, should you want a little more lift, and the frame itself is built so it can be easily flipped up for nursing. If you want a little more wiggle room, plus size maternity bras are available up to size XL, which accommodates a size 38 band.

• Comfort. This should be at the top of your nursing bra must list during the first four to six weeks after having baby, says Stephanie Nguyen, founder of Modern Milk and a certified lactation consultant. She recommends stretchy nursing bras to accommodate the breast changes mom experiences during this time. “Look for nursing bras in soft fabrics,” Nguyen says. You'll also want to pick a maternity bra with thick back closures that have four or more hooks; wide, cushioned straps and a band that doesn't ride up in the back.
• Comfort. This should be at the top of your nursing bra must list during the first four to six weeks after having baby, says Stephanie Nguyen, founder of Modern Milk and a certified lactation consultant. She recommends stretchy nursing bras to accommodate the breast changes mom experiences during this time. “Look for nursing bras in soft fabrics,” Nguyen says. You'll also want to pick a maternity bra with thick back closures that have four or more hooks; wide, cushioned straps and a band that doesn't ride up in the back.
• Comfort. This should be at the top of your nursing bra must list during the first four to six weeks after having baby, says Stephanie Nguyen, founder of Modern Milk and a certified lactation consultant. She recommends stretchy nursing bras to accommodate the breast changes mom experiences during this time. “Look for nursing bras in soft fabrics,” Nguyen says. You'll also want to pick a maternity bra with thick back closures that have four or more hooks; wide, cushioned straps and a band that doesn't ride up in the back.
Noppies' range of maternity lingerie includes various maternity bras. Choose from a maternity bra with secure, flexible clips, padded nursing bra with nursing clips, maternity bras with wide straps for extra support and bras that will grow with your changing shape. They offer support and are made of soft materials that provide a comfortable fit. Every pregnancy bra can be matched up with pants, shorts or a thong. Make endless combinations with Noppies maternity bras.
Cake designs and stocks one of the most comprehensive range of nursing bras in the world. From seamless, contour, spacer, wire, non-wire, fuller figure, plunge, balcony, fuller coverage, sports & sleep bras, we’ve got your every need covered. It is extremely important to be wearing a nursing bra whilst breastfeeding to protect yourself from long term damage and to provide much-needed comfort.
The Bravado Designs essential embrace nursing bra delivers comfort and amazing support without an underwire. The revolutionary fabric combines premium cotton and luxurious microfiber all in one for breathability on the inside and a smooth look on the outside. All Bravado Designs nursing bras have our proprietary, easy open and close, one-handed Bravado Designs 'b' nursing clips. In addition, the full drop away cup design allows for maximum skin-to-skin contact. A bra conversion kit is included so you can convert your nursing bra to a 'regular bra' once your nursing journey is complete. All Bravado Designs styles are tested and certified in accordance with oeko-tex standard 100 requirements, which ensures products are free from harmful substances.
The features of a good nursing bra include, additional support for your fuller bust which can be approximately 35% heavier, side support to avoid flattening of the bust which can lead to ligament damage, non-restrictive, a wider set frame to avoid pressure on the milk ducts, cotton lining for comfort and breathability, six hooks and eyes for room to reduce as your rib cage contracts & one hand drop down clips for easy nursing.
As with all bras, finding the right fit can be a challenge. It is the same process as with standard bras, the band under your bust should sit flat across your back not riding upwards. Avoiding any cutting in on your breast tissue is important. Bras which are too tight can restrict the flow and amount of milk produced – so it is important to change to to a Maternity/Nursing bra after you feel like your non-maternity bras are uncomfortable and no longer fitting or offering the right support. You may find your cup sizes change as your pregnancy progresses, every pregnancy and woman is different, however you may find you need to go up 3-4 cup sizes and increase your band size as your baby grows. Further changes can occur during the nursing cycle, when your milk flow comes in you may increase in the cup size before your bust size settles again. This great video can help you check if you have the right size.
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