In pregnancy week 26, many start to feel their body changing more rapidly from week to week. This can make it harder to choose the right size in clothes and underwear, as it’s not just about “going up a size” but about fit in the right places: belly, hips, bust, and circumference. Here’s a practical guide on how to typically choose your size now, and what you can measure if you’re in doubt.

The belly often gets bigger in week 26, and this particularly affects waistbands, length, and where clothes feel tight. A good rule of thumb is to choose styles made for pregnancy, as they are designed with space for the belly rather than just being “bigger.”

• Sit down: If the waistband digs in, it's unlikely to get better later in pregnancy.
• Lift your arms: If your top rides up over your belly, you might need more length.
• Try moving: You should be able to walk, bend, and breathe freely without constantly adjusting your clothes.

When choosing your size in week 26, it’s often most helpful to start with your normal size and let the maternity cut do the work. If you are between two sizes, it can be reassuring to choose the one that provides the most room at the belly and hips, especially if the material isn’t very elastic.

If you're in doubt, use a size guide and measure yourself, especially around the hips and bust, as these measurements typically affect the size the most now. You can start here: Pregnancy.

Your bust and circumference can change in week 26, and it's completely normal for a bra to suddenly feel tight or "too small" in a short period. Prioritize models without underwire, as underwires can press and be unsuitable when your body is changing and breast tissue is more sensitive.

• Circumference: Should sit firmly without feeling tight, even when you breathe deeply.
• Cup: Your breast should be "fully inside" without bulging out at the top or sides.
• Straps: Should not carry all the weight alone – support should primarily come from the circumference.

If you want flexible support without metal, gel-based support can be an alternative. For example, see Gel-Support maternity and nursing bra and explore more options in Maternity & Nursing Bras.

In week 26, leggings are often a lifesaver, but the size depends on whether the belly panel provides enough room without slipping down. Look for soft, elastic materials and a construction that provides gentle support without squeezing.

If you find that regular leggings roll down or feel tight, maternity models can be easier to keep in place all day. You can see relevant options here: Maternity Leggings.

Some pregnant women in week 26 feel a need for extra support around the belly and lower back, especially during long days on their feet or during activity. Here, size isn't about "tightness" but about adjustable fit, so you can adapt as your body changes.

Choose a model that can be continuously adjusted, so it doesn't only fit for a single week. An example is the Adjustable support belt. You can also see the full range of Support Belts.

A support belt should feel relieving, not restrictive. If you experience increased discomfort, pressure, or pain, stop and talk to your midwife or doctor about what suits your body and needs.

If you are currently mostly looking for solutions that follow the body's changes, it often makes sense to start with a bra that can adapt and an adjustable belly support. Both are primarily about fit and comfort when size can change quickly around week 26.