Are Chills During Pregnancy Normal? Causes, Remedies, and When to Seek Help
Understanding why chills happen during pregnancy, what’s normal, what’s not, and how to keep yourself and baby safe.
Many pregnant women expect to feel hot due to surging hormones and increased metabolism, but some are surprised when they get sudden chills or waves of cold. Chills can be unsettling, yet they are surprisingly common throughout pregnancy. But when are chills normal, and when do they warrant a call to your healthcare provider? This comprehensive guide answers all your questions about chills in pregnancy, explores common causes, shares safe remedies, and explains when to seek medical advice.
Is It Normal to Have Chills During Pregnancy?
Yes, experiencing chills at some point during pregnancy is normal for many women. Chills can occur for harmless reasons, like hormonal shifts, but sometimes they point to underlying health issues that need attention. The key is understanding your symptoms in context and knowing when to take action.
- Mild and occasional chills are usually nothing to worry about, especially in the first trimester.
- If chills are accompanied by fever, severe discomfort, or persist for a long time, contact your provider.
While many expectant mothers feel overheated, others may experience coldness, chills, or even alternating sensations of hot and cold. Reasons range from your body’s response to hormonal changes to conditions like anemia or thyroid issues.
Chills During Different Stages of Pregnancy
Chills can arise at any stage of pregnancy, but the triggers and significance may change as your body adapts to pregnancy’s demands.
| Trimester | What to Expect | Common Causes |
|---|---|---|
| First Trimester | Mild chills are most common as your body adjusts to rapid hormonal and metabolic changes. | Hormonal fluctuations, early immune response, fatigue, stress, morning sickness |
| Second Trimester | Chills generally decrease as the body adapts, but can still occur with illness or stress. Hot flashes may start to become more prominent. | Mild infections, stress, increased metabolism, temperature sensitivity |
| Third Trimester | Chills are less common but can return, sometimes signaling infection, labor, or fatigue. | Onset of labor, infections, anemia, hormone fluctuations, severe fatigue |
Why Do Chills Happen During Pregnancy?
While chills often result from normal pregnancy changes, they can also be the body’s way of signaling an underlying health issue. Here’s a breakdown of the primary causes of chills in pregnancy:
Pregnancy-Related Causes of Chills
- Hormonal Fluctuations: Progesterone and other hormones surge, which can play tricks on your internal thermostat, causing sudden feelings of cold or hot flashes.
- Increased Metabolism: Your body is now working overtime to support baby’s growth, which can impact temperature regulation and produce alternations in body heat and chills.
- Dehydration: Not drinking enough water can disrupt the balance of fluids and electrolytes, triggering chills along with other symptoms.
- Anemia: Pregnancy raises your need for iron, and if you develop anemia, you may feel persistently cold, have chills, and notice fatigue or weakness.
Other Medical Causes
- Low Blood Pressure: Some people experience lower blood pressure during pregnancy (especially in the first or second trimester), causing clammy skin, dizziness, fainting, and chills.
- Thyroid Disorders: Hypothyroidism or other thyroid dysfunctions may develop or worsen during pregnancy, causing persistent cold sensations and chills.
- Fatigue and Lack of Sleep: Physical exhaustion makes it harder for your body to regulate temperature, which can lead to chills or feeling cold – especially when combined with other symptoms.
- Stress and Anxiety: Your body’s stress response can also temporarily narrow blood vessels and make you feel cold or shivery.
Illness-Related Causes
- Urinary Tract Infection (UTI): UTIs are more frequent during pregnancy and can show up with chills, fever, burning urination, or abdominal pain. Prompt treatment is essential.
- Colds and Viral Infections: Regular illnesses such as colds or flu remain common. These can add chills, fever, cough, or sore throat. If chills are paired with any of these, talk with your provider.
When to Worry: Warning Signs and When to Contact Your Doctor
Most chills in pregnancy are harmless. However, some symptoms alongside chills should not be ignored. Call your healthcare provider if you experience:
- High or persistent fever (above 100.4°F / 38°C)
- Severe chills that don’t go away or worsen
- Painful urination or lower abdominal pain (possible UTI)
- Chills with severe headache, blurred vision, or swelling (possible preeclampsia, especially late pregnancy)
- Shortness of breath, dizziness, chest pain, or fainting
- Chills accompanied by heavy vaginal bleeding or severe cramps
Always trust your instincts. If something seems off, it’s better to check with your provider, even if you’re unsure.
Remedies and Self-Care for Chills During Pregnancy
Mild chills typically resolve on their own, but there are home strategies that can help you feel more comfortable and proactively manage your symptoms:
Safe at-Home Remedies
- Dress in Warm Layers: Use extra sweaters, socks, or cozy blankets to maintain warmth. Try fabrics that let your skin breathe to avoid overheating.
- Drink Warm Fluids: Herbal teas (approved by your doctor), broth, or warm water can help comfort and keep you hydrated.
- Rest Frequently: Don’t hesitate to allow your body ample downtime. Both pregnancy and recovery from chills or illness require good sleep.
- Eat Balanced, Nutritious Meals: Choose foods that support your immune system and provide sustained energy, such as leafy greens, fruits, lean protein, and complex carbs.
- Take Warm Showers or Baths: Warm (not hot) baths or showers can help soothe chills and relax tense muscles. Keep the water temperature safe—don’t overheat.
Medications: What’s Safe?
- Acetaminophen (paracetamol) is considered safe for fever or aches (always check with your provider first). Avoid ibuprofen and aspirin unless specifically instructed.
- Always consult your doctor before taking any medication, even over-the-counter ones or natural supplements.
Tips for Coping With Chills and Staying Comfortable
- Listen to Your Body: If you’re tired, rest more often. Adjust your activity based on how you feel.
- Monitor Your Symptoms: Keep a log if you have recurring chills, especially if accompanied by other symptoms like fever or pain.
- Practice Good Hygiene: Wash your hands frequently and avoid sick contacts to minimize the risk of infections.
- Keep Your Provider Informed: Even if chills seem minor, let your healthcare team know during check-ups, especially if they change or are persistent.
Chills in Pregnancy: Symptom or Sign of Something Else?
Many women wonder if chills signal pregnancy itself. While chills can occur as early as the first trimester, especially as the body adapts to pregnancy, they are not a classic sign of pregnancy by themselves. They are much more likely to happen as part of the body’s response to hormonal changes or health conditions that can arise during pregnancy. If you’re experiencing chills among other early pregnancy symptoms (like nausea, fatigue, or breast soreness), that can reinforce the suspicion of pregnancy, but a pregnancy test is the best way to know for sure.
Common Early Pregnancy Symptoms
- Missed period
- Nausea or vomiting (“morning sickness”)
- Breast swelling and tenderness
- Fatigue
- Frequent urination
- Spotting and mild cramping
- Nasal congestion
Preventing Chills and Maintaining Healthy Temperature in Pregnancy
You can’t always prevent chills, but certain steps reduce how often or how intensely they occur:
- Stay hydrated with water and electrolyte-rich fluids.
- Eat iron-rich foods to prevent anemia (like spinach, beans, lean meats).
- Get regular prenatal care to monitor for health changes.
- Dress for the weather and layer up in cooler environments.
- Rest when needed—adequate sleep is critical for temperature regulation.
Chills by Trimester: What’s Typical?
| Trimester | Typical Chills Pattern | Key Considerations |
|---|---|---|
| First | Common as the body reacts to new hormonal loads | Often short-lived; monitor for related symptoms like fever or infection |
| Second | Gradually decrease in most women | If frequent or persistent, rule out illness or anemia |
| Third | Less common, but possible with fatigue, anemia, or onset of labor | Watch for signs of preeclampsia or infection (especially with fever/swelling/headaches) |
Frequently Asked Questions (FAQs)
Are chills a sign of early pregnancy?
Chills alone are not a hallmark symptom of early pregnancy, but many people experience body temperature fluctuations due to hormonal changes. Other early symptoms include missed periods, breast changes, and nausea. If you suspect pregnancy, take a test and consult your healthcare provider.
Should I worry if I feel cold but don’t have a fever?
Not necessarily. Feeling cold with no fever is usually due to normal changes, but if you also have weakness, dizziness, or symptoms like heavy bleeding or pain, call your doctor.
What health issues make chills during pregnancy dangerous?
A high fever, painful urination, severe headaches, vision changes, swelling, or persistent/chronic chills could indicate infection, preeclampsia, or other concerns. Always consult your provider if any of these symptoms occur together.
How can I quickly warm up when I have chills?
Layer up, sip something warm, rest, and avoid drafts. If you have chills and a fever, don’t over-bundle—use lightweight blankets, and consider safe medication like acetaminophen, after consulting your provider.
Can chills indicate the start of labor?
Rarely. Some women report chills as labor begins, but usually, this is accompanied by other symptoms like contractions, back pain, or water breaking. Call your provider if you suspect labor is starting still in advance of your due date.
Key Takeaways for Expectant Moms
- Chills are often normal during pregnancy, especially in the first trimester.
- If chills are severe, come with other worrying symptoms, or persist, contact your healthcare provider.
- Most mild chills can be managed with warm layers, hydration, nutrition, and rest.
- Get regular check-ups, and always bring up new or persistent symptoms with your provider for peace of mind.
Bottom line: Pregnancy chills are common, manageable, and usually harmless—but knowing when to seek help ensures both your safety and your baby’s health.
