Regular exercise during pregnancy offers significant benefits for both mother and baby. Research shows that active pregnant women have lower rates of gestational diabetes, preeclampsia, and excessive weight gain. They also report fewer back pain complaints and shorter labours. With your healthcare provider's approval, staying active is one of the best things you can do during pregnancy.
Exercise helps control pregnancy weight gain, reduces the risk of gestational diabetes by improving insulin sensitivity, and lowers the likelihood of developing high blood pressure. Physical activity also boosts mood and reduces the risk of prenatal depression and anxiety — conditions that affect a significant number of pregnant women.
For the baby, studies suggest that regular moderate exercise during pregnancy is associated with a healthy birth weight and may support brain development. Children born to active mothers show better stress tolerance in studies measuring heart rate variability.
Most health organisations, including the World Health Organization, recommend at least 150 minutes of moderate-intensity aerobic activity per week throughout pregnancy. This can be broken into 30-minute sessions five days a week, or shorter sessions spread through the day. If you were not active before pregnancy, start with shorter, lower-intensity sessions and build gradually.
Walking is the most accessible form of exercise and safe at any fitness level throughout all three trimesters. A brisk 30-minute walk most days meets the recommended activity guidelines.
Swimming and water aerobics are ideal in pregnancy because the water supports your growing belly, reducing strain on joints and the lower back. Water provides natural resistance for a full-body workout without impact.
Prenatal yoga improves flexibility, strengthens the pelvic floor, and teaches breathing techniques useful during labour. Seek out a class specifically designed for pregnant women, as some traditional yoga poses are unsuitable during pregnancy.
Stationary cycling is a safe option throughout most of pregnancy. As your belly grows, the upright position of a stationary bike becomes more comfortable than a road bike, and there is no risk of falls.
Strength training with light to moderate weights helps maintain muscle tone and reduces back pain. Focus on compound movements like squats and rows, and avoid exercises that require lying flat on your back after the first trimester.
Pelvic floor exercises (Kegels) should be practised every day throughout pregnancy and postpartum. A strong pelvic floor reduces the risk of urinary incontinence and can aid in recovery after vaginal birth.
After the first trimester, avoid exercises that require lying flat on your back for extended periods, as the weight of the uterus can compress the vena cava and reduce blood flow. Contact sports (football, basketball, martial arts) carry a risk of abdominal trauma and should be avoided. High-altitude activities (above 2,500 metres) and scuba diving are not recommended in pregnancy due to risks of reduced oxygen and decompression sickness.
Activities with a high risk of falling — skiing, horseback riding, gymnastics, and road cycling — should be replaced with safer alternatives once the second trimester begins and balance changes.
Stop exercising and contact your healthcare provider if you experience vaginal bleeding, regular contractions, fluid leaking from the vagina, chest pain, severe shortness of breath, dizziness or feeling faint, calf pain or swelling, or a sudden decrease in fetal movement.
Wear a supportive maternity sports bra and, from the second trimester, a belly support band. Stay well hydrated before, during, and after exercise. Avoid exercising in hot, humid conditions, as overheating carries risks for the baby. Choose well-cushioned, supportive footwear to compensate for the changes in balance and gait that accompany pregnancy.
Always check with your midwife or obstetrician before starting a new exercise programme, particularly if you have any pregnancy complications. Use our Pregnancy Week Calculator to track your current stage, or our Due Date Calculator to plan ahead.
This article is for informational purposes only and does not constitute medical advice. Always consult a qualified healthcare provider regarding your specific situation.