Exercise during pregnancy: Adapting Activity as Your Body Changes

For most people with an uncomplicated pregnancy, staying active is safe and useful. The right plan depends on your usual activity, current symptoms and any medical or pregnancy complications. Exercise can support health without becoming another standard you have to meet perfectly.

Start from what you already do

Tell your midwife what a typical week looks like, including physical work, caring responsibilities and organized exercise. If you have a health condition or pregnancy complication, ask whether you need particular restrictions or supervision. Advice given to a friend may not fit your circumstances.

People who were inactive can begin with small amounts of gentle activity and increase gradually. Do not start a new vigorous sport simply because you have seen a pregnancy workout online. Experienced exercisers may be able to continue familiar activities with adjustments.

Make the weekly target manageable

UK guidance recommends aiming for 150 minutes of moderate activity across the week, with muscle strengthening activity on two days. Moderate effort means breathing faster while still being able to talk. Short sessions count, and doing less can still be worthwhile.

A plan could combine comfortable walks with another activity you enjoy. Treat the target as something to work towards where appropriate, not a requirement to exercise through illness or pain. Ask your clinician what is realistic if symptoms limit your day.

Choose activities and settings carefully

Swimming, walking and appropriately modified classes are common options. Avoid activities with a substantial risk of falling or a blow to the abdomen, and do not scuba dive. A qualified instructor should know you are pregnant and adapt the session accordingly.

Avoid prolonged exercise flat on your back later in pregnancy. Keep cool, drink water and allow time to eat rather than exercising on an empty stomach. The strength training guide discusses adapting positions and technique as your body changes.

Stop for symptoms that need assessment

Stop exercising and contact your maternity clinician if you have vaginal bleeding, leaking fluid, painful regular contractions, dizziness, unusual weakness, calf pain or swelling, or breathlessness before activity. Chest pain and severe breathing difficulty need emergency assessment. A new headache or pain that concerns you also deserves advice.

Do not restart simply because a class is nearly finished. Describe what you were doing, when the symptom began and whether it continues at rest. Ask what needs checking before you return to activity.

Let the plan change

Review how you feel during a session and later that day. A shorter session, a different activity or more rest may suit you better as pregnancy progresses. Staying active is about supporting your health, not proving that you can maintain the same routine until birth.