Safe Exercises During Pregnancy: Stay Active for a Healthy Pregnancy

Exercise during pregnancy isn't just safe—it's beneficial for both you and your baby. Regular physical activity can reduce pregnancy discomfort, prepare your body for labor, and support faster postpartum recovery. Here's how to exercise safely throughout each trimester.

Benefits of Exercise During Pregnancy

Research consistently shows that exercise during pregnancy:

• Reduces back pain and discomfort
• Decreases risk of gestational diabetes
• Lowers risk of excessive weight gain
• Improves mood and reduces anxiety/depression
• Increases energy levels
• Promotes better sleep
• Helps prepare for labor and delivery
• Supports faster postpartum recovery
• May reduce risk of cesarean delivery

General Guidelines

How Much Exercise?

The American College of Obstetricians and Gynecologists (ACOG) recommends:

• 150 minutes per week of moderate-intensity aerobic activity
• Spread throughout the week (e.g., 30 minutes, 5 days)
• Can be broken into shorter sessions (e.g., 10-minute walks)

Signs to Stop Exercising

Stop immediately and contact your healthcare provider if you experience:

• Vaginal bleeding
• Regular painful contractions
• Amniotic fluid leakage
• Dizziness or feeling faint
• Shortness of breath before starting exercise
• Chest pain
• Headache
• Muscle weakness affecting balance
• Calf pain or swelling

Talk to Your Provider First

While exercise is generally safe, discuss your plans with your healthcare provider, especially if you have:

• Heart or lung disease
• Cervical insufficiency or cerclage
• Placenta previa after 26 weeks
• Preeclampsia
• Severe anemia
• Risk factors for preterm labor
• Multiple pregnancy with risk factors

First Trimester (Weeks 1-12)

What's Happening

Your body is adapting to pregnancy. You may experience fatigue, nausea, and breast tenderness. The baby is small and protected.

Exercise Recommendations

Safe activities:

• Walking
• Swimming
• Stationary cycling
• Low-impact aerobics
• Yoga (prenatal or modified)
• Light strength training
• Most activities you did before pregnancy (with modifications as needed)

Key adjustments:

• Listen to your body—fatigue is common; rest when needed
• Stay hydrated
• Don't overheat (avoid hot yoga, hot tubs)
• Begin pelvic floor exercises (Kegels)
• Avoid contact sports and high fall-risk activities

Sample First Trimester Routine

Cardio (20-30 minutes):

• Brisk walking or swimming

Strength (15-20 minutes):

• Bodyweight squats: 2 x 12
• Wall push-ups: 2 x 10
• Seated rows with band: 2 x 12
• Glute bridges: 2 x 12
• Bird dog: 2 x 10 each side

Flexibility:

• Gentle stretching for major muscle groups

Second Trimester (Weeks 13-27)

What's Happening

Often called the "honeymoon" trimester—energy typically returns, nausea decreases. Your belly is growing, and your center of gravity shifts.

Exercise Recommendations

Safe activities:

• All first trimester activities
• Prenatal fitness classes
• Modified strength training
• Aqua aerobics (excellent as belly grows)

Key adjustments:

• Avoid lying flat on your back after 20 weeks (can compress blood vessels)
• Modify exercises as your belly grows
• Avoid exercises requiring lying face down
• Widen your stance for balance
• Avoid deep twisting motions
• Continue pelvic floor exercises
• Stay cool and hydrated

Modifications for Growing Belly

Instead of: Lying supine exercises Do: Inclined position, side-lying, or standing versions

Instead of: Prone exercises (face down) Do: Hands and knees or standing alternatives

Instead of: Narrow-stance exercises Do: Wider stance for stability

Sample Second Trimester Routine

Cardio (25-30 minutes):

• Swimming, walking, or stationary bike

Strength (20 minutes):

• Sumo squats: 2 x 12
• Incline push-ups: 2 x 10
• Seated resistance band rows: 2 x 12
• Side-lying leg lifts: 2 x 15 each side
• Standing calf raises: 2 x 15
• Bird dog: 2 x 10 each side
• Kegel exercises: 3 x 10-second holds

Flexibility:

• Cat-cow stretches
• Hip flexor stretch (modified)
• Chest stretch in doorway

Third Trimester (Weeks 28-40)

What's Happening

Your belly is large, and you may feel more uncomfortable. Balance is challenged, joints are looser (relaxin hormone), and fatigue may return.

Exercise Recommendations

Safe activities:

• Walking (often the most comfortable)
• Swimming and water aerobics (buoyancy relieves pressure)
• Stationary cycling
• Prenatal yoga
• Light strength training with modifications

Key adjustments:

• Reduce intensity as needed
• Focus on maintenance rather than gains
• Avoid exercises with fall risk
• Keep movements controlled
• Prioritize pelvic floor and breathing exercises
• Listen to your body—some days will be harder
• Short sessions may be more manageable than long ones

Sample Third Trimester Routine

Cardio (15-25 minutes):

• Walking or pool exercises

Strength (15 minutes):

• Wall squats: 2 x 10
• Wall push-ups: 2 x 10
• Seated rows: 2 x 12
• Side-lying clamshells: 2 x 12 each side
• Standing calf raises: 2 x 12
• Cat-cow: 10 cycles
• Kegels with breathing

Flexibility:

• Gentle stretching
• Focus on hips and back

Exercises to Avoid During Pregnancy

High-Risk Activities

• Contact sports (soccer, basketball, hockey)
• Activities with high fall risk (skiing, horseback riding, gymnastics)
• Scuba diving
• Hot yoga or exercising in excessive heat
• High-altitude activities (above 6,000 feet if not acclimated)

Exercises to Modify or Skip

• Lying flat on back after 20 weeks
• Deep abdominal exercises (crunches, sit-ups)
• Heavy lifting with breath holding (Valsalva)
• Jumping or jarring movements (as pregnancy progresses)
• Exercises that cause coning/doming of abdomen

Pelvic Floor Exercises

Strong pelvic floor muscles support pregnancy, aid delivery, and speed recovery.

Basic Kegel

Identify the muscles by stopping urination midstream (only to identify—don't do this regularly). Contract these muscles for 5-10 seconds, then relax completely. Do 10-15 reps, 3 times daily.

Quick Flicks

Contract pelvic floor quickly and release. Do 10 quick contractions. This trains fast-twitch fibers.

Elevator Kegels

Imagine your pelvic floor as an elevator. Contract gradually, "rising" through floors, then release gradually back down. Do 5 reps.

Pelvic Floor with Breath

Inhale and relax your pelvic floor. Exhale and gently engage pelvic floor. This coordinates breathing and pelvic floor function—important for labor.

Core Exercises Safe for Pregnancy

Traditional crunches aren't recommended, but core stability is still important.

Bird Dog

On hands and knees, extend opposite arm and leg while keeping your back flat and core engaged. Hold 5 seconds. Do 10 each side.

Pallof Press (Standing)

Hold a resistance band at chest height. Press it straight out, resisting rotation. Hold 3 seconds. Do 10 each side.

Side Plank (Modified)

Lie on your side, knees bent. Lift hips to create a straight line from shoulders to knees. Hold 15-20 seconds each side.

Cat-Cow

On hands and knees, alternate between arching and rounding your spine. Move slowly with breath. Do 10-15 cycles.

Staying Comfortable

Stay Cool

Avoid overheating. Exercise in air conditioning or cooler parts of the day. Stay well-hydrated.

Wear Support

• Supportive sports bra
• Belly support band if helpful
• Comfortable, supportive shoes

Fuel Properly

• Eat a small snack 1-2 hours before exercise
• Stay hydrated before, during, and after
• Don't exercise while fasting

Rest When Needed

Some days you won't feel like exercising—that's okay. Rest is also important.

When to Resume Exercise Postpartum

Recovery varies, but general guidelines:

Vaginal delivery: Light walking and pelvic floor exercises within days. Gradual return to exercise over 4-6 weeks.

Cesarean delivery: Follow your provider's guidance. Typically 6-8 weeks before returning to exercise, starting very gently.

All deliveries: Get clearance at your postpartum checkup. Start slowly and progress gradually.

The Bottom Line

Exercise during pregnancy is safe and beneficial for most women. The key is listening to your body, making modifications as your pregnancy progresses, and staying in communication with your healthcare provider.

Focus on consistency over intensity. Maintain fitness rather than trying to achieve new goals. Prioritize activities that feel good and support your changing body.

Your body is doing incredible work growing a baby. Exercise can support that process, reduce discomfort, and help you feel your best throughout pregnancy and beyond.