Why Is Fatigue Common in Pregnancy?
Fatigue is one of the most common symptoms of pregnancy, especially during the first and third trimesters. The dramatic changes happening in your body—both hormonal and physical—contribute to these feelings of exhaustion. Understanding the underlying causes can help you manage fatigue effectively.
What Causes Fatigue in Pregnancy?
1. Hormonal Changes
The surge in progesterone levels during early pregnancy can make you feel more tired. This hormone helps maintain your pregnancy but also has a sedative effect on the body.2. Increased Energy Demands
Your body is working hard to support the growth and development of your baby, which demands extra energy.3. Emotional and Physical Stress
The excitement and anxiety of preparing for a new baby can take a toll on your emotional well-being, contributing to mental fatigue.4. Changes in Sleep Patterns
Frequent bathroom trips, vivid dreams, and physical discomfort may interrupt your sleep, leaving you feeling drained.5. Anemia
Fatigue can also be a sign of iron deficiency anemia, a common condition during pregnancy. Your doctor can assess your iron levels through blood tests.How to Manage Fatigue During Pregnancy
1. Prioritize Rest
- Listen to your body and take naps when needed.
- Aim for 7-9 hours of quality sleep at night. Use pregnancy pillows to find comfortable sleeping positions.
2. Stay Active
While it might feel counterintuitive, light exercise like walking or prenatal yoga can boost your energy levels by improving circulation and reducing stress.3. Eat a Balanced Diet
Fuel your body with energy-boosting foods such as:- Complex carbohydrates (whole grains, sweet potatoes)
- Lean proteins (chicken, beans, eggs)
- Iron-rich foods (spinach, lentils, red meat) paired with vitamin C for better absorption.
4. Stay Hydrated
Dehydration can make fatigue worse. Drink plenty of water throughout the day to keep your energy levels up.5. Manage Stress
Practice relaxation techniques like deep breathing, meditation, or prenatal massages to reduce mental and physical tension.When to Seek Medical Help
While fatigue is a normal part of pregnancy, you should consult your healthcare provider if:- You feel excessively tired despite adequate rest.
- Fatigue is accompanied by shortness of breath, dizziness, or rapid heartbeat.
- You suspect anemia or another medical condition.
Fatigue by Trimester: What to Expect
First Trimester
Your body is adjusting to hormonal changes and the demands of early pregnancy. Fatigue is typically at its peak during this time.Second Trimester
Many women experience a “pregnancy glow” during the second trimester, with reduced fatigue and increased energy.
Third Trimester
Fatigue often returns as your growing baby places additional demands on your body, and sleep may become more disrupted.
Fatigue during pregnancy is a natural response to the incredible work your body is doing. By adopting healthy habits and listening to your body, you can navigate this phase with greater ease. If your fatigue feels overwhelming or unusual, don’t hesitate to reach out to your healthcare provider for support. Remember, this is a temporary stage on the path to meeting your baby!

Content Reviewed by Dr V.
Learn MoreDr. Vaheh Shirvanian, a family medicine physician and father. With over 17 years of experience, he specializes in inpatient acute hospital care, outpatient family medicine, urgent care, emergency medicine, and hospice care. Dr. V is passionate about guiding new parents through the challenges and joys of parenthood, offering compassionate and expert support at every step.