Walking During Pregnancy: Trimester by Trimester

Walking is one of the few exercises that almost every pregnant person can do safely from the first week to the last. The American College of Obstetricians and Gynecologists (ACOG) recommends 150 minutes of moderate-intensity exercise per week during pregnancy, and walking is their go-to example. It’s low impact, requires no equipment, and scales easily as your body changes.

That said, walking at 8 weeks feels very different from walking at 36 weeks. Your body is doing extraordinary work, and your walking routine needs to respect that. Here’s what to expect and how to adapt, trimester by trimester.

Before We Start: Talk to Your Provider

This article is general guidance for healthy, uncomplicated pregnancies. If you have a high-risk pregnancy, placenta previa, preeclampsia, cervical insufficiency, or other complications, your activity recommendations may be different. Always clear exercise with your OB or midwife, especially if you weren’t exercising regularly before pregnancy.

With that said, for most pregnancies, the answer to “can I walk?” is an enthusiastic yes.

First Trimester (Weeks 1 to 13)

Physically, your body hasn’t changed much on the outside. Internally, everything is changing. The first trimester often brings fatigue that feels disproportionate to anything you’re actually doing, along with nausea that can range from mild queasiness to all-day misery.

If you were walking regularly before pregnancy, keep going at your usual pace and distance. There’s no reason to cut back in the first trimester unless you feel unwell. Your body will tell you if something is too much.

If you weren’t exercising before pregnancy, this is actually a great time to start a walking habit. Begin with one mile at a comfortable pace, three or four times a week. That’s about 15 to 20 minutes per session, which most people can manage even on tired days.

The biggest first-trimester challenge is usually fatigue. On days when exhaustion hits, a shorter walk is better than no walk. Even 10 minutes of movement can improve energy levels and help with the sluggishness that comes from early pregnancy hormones. Fresh air and gentle movement often ease nausea as well, though this varies widely from person to person.

Stay hydrated. Your blood volume is already increasing, and dehydration can worsen both nausea and fatigue. Bring water, even on short walks.

Second Trimester (Weeks 14 to 27)

Most people feel their best in the second trimester. Nausea typically fades, energy returns, and your bump is present but not yet limiting your movement. This is the window where walking feels most natural and enjoyable.

If you’ve been consistent through the first trimester, now is the time to build. Aim for 30 minutes of walking most days, or about two miles at a moderate pace. If that feels good, you can push toward three miles on days when energy allows. Listen to your body, but don’t be afraid to challenge yourself during this phase.

Your centre of gravity is shifting as your belly grows, which can affect balance. Stick to even, predictable surfaces. Uneven trails or icy sidewalks that you might have navigated easily before pregnancy now carry more risk. This isn’t about being overly cautious; it’s about acknowledging that a fall during pregnancy carries different stakes.

Round ligament pain (sharp twinges on the sides of your lower abdomen) is common in the second trimester and can flare up during walking. It’s not dangerous, but it’s uncomfortable. Slowing your pace, supporting your belly with a maternity band, and avoiding sudden direction changes can help. If the pain is persistent or severe, bring it up with your provider.

Use the walking time calculator to plan routes that fit your energy on any given day. Having a 20-minute loop and a 40-minute loop mapped out in advance means you can decide based on how you feel, without overthinking it.

Third Trimester (Weeks 28 to 40)

This is where adaptation becomes essential. Your belly is large, your lungs have less room to expand, your bladder is under constant pressure, and your joints are loosened by relaxin (a hormone that prepares your body for birth but also makes your ligaments more prone to strain).

Walking in the third trimester is still safe and beneficial. But the pace will slow, the distance may shrink, and the bathroom stops will increase. All of this is normal.

Many people find that their comfortable pace drops from moderate to leisurely in the final weeks. A distance that took 30 minutes in the second trimester may take 40 or 45 now. That’s fine. The point is movement, not performance. If one mile is your third-trimester distance, that’s still a meaningful walk.

Braxton-Hicks contractions (practice contractions) can be triggered by activity, including walking. They’re usually irregular and painless or mildly uncomfortable. If contractions become regular, painful, or don’t stop when you rest, contact your provider.

Practical adjustments for third-trimester walking: wear supportive shoes (your feet may have swollen or widened), choose routes with bathroom access, walk during cooler parts of the day if it’s warm, and bring water. A belly support band can take pressure off your lower back and pelvis, making longer walks more comfortable.

Pelvic girdle pain (pain in the front or back of the pelvis) affects some people in late pregnancy and can make walking difficult. If you experience this, shorter and slower walks may still be manageable. A physiotherapist who specialises in prenatal care can help you modify your walking technique to reduce pelvic stress.

The Benefits You’re Building

Walking during pregnancy isn’t just about staying fit for nine months. The benefits are specific and well-documented.

Regular walking during pregnancy is associated with a lower risk of gestational diabetes, reduced rates of preeclampsia, less excessive weight gain, shorter labour (on average), and faster postpartum recovery. It also improves mood and sleep quality during a period when both are under significant pressure.

For gestational diabetes specifically, the blood sugar benefits of walking are similar to those for type 2 diabetes. A post-meal walk of 10 to 15 minutes can meaningfully reduce glucose spikes, which matters if you’re managing or trying to prevent gestational diabetes.

The calorie calculator can give you a sense of how your walks contribute to energy balance during pregnancy. While calorie restriction isn’t recommended during pregnancy, understanding your activity level can help you and your provider make informed decisions about nutrition and weight gain.

After the Baby Arrives

Walking is also one of the first exercises most people return to after giving birth. For vaginal deliveries, many providers clear walking within days. For caesarean deliveries, the timeline is longer but walking is still typically the first recommended activity.

Don’t rush the return. Your body has been through something extraordinary, and the recovery is real. Start with short, flat walks and increase gradually. The postpartum period has its own article for a reason, so we’ll leave the details there.

A Walk for Two

There’s something quietly powerful about walking during pregnancy. It’s one of the few things you can do that’s simultaneously good for your body, your baby, and your mind. It doesn’t require special skills, equipment, or circumstances. It just requires shoes and a few minutes.

On the hard days (and there will be hard days), even a short walk around the block counts. On the good days, enjoy the longer routes while they’re comfortable. Your body is doing remarkable work. Walking is one of the simplest ways to support it.