Overview

Many pregnant individuals notice they get winded more easily, especially in the early stages and later months of pregnancy. While often harmless, in some cases it may signal something more serious.

This sensation—called dyspnea—can happen during any trimester. It affects a majority of pregnant women at some point.

Studies show that around 60% to 70% of women report experiencing shortness of breath in the third trimester. Early pregnancy breathlessness is less common and usually mild, affecting just over 3% of women in the first half of pregnancy. However, it tends to intensify as the pregnancy advances.

Some women barely notice the change, while others feel more uncomfortable. Let’s explore what’s behind this symptom, when to seek help, and how to feel more comfortable.

Why Breathlessness Happens in Pregnancy

There are several natural reasons for feeling short of breath while expecting.

One key factor is increased progesterone, a hormone essential to maintaining pregnancy. Besides supporting the uterine lining, it also impacts your respiratory system by encouraging deeper and more frequent breathing, which may feel unfamiliar or uncomfortable.

Your body also undergoes major changes in blood volume. As early as the sixth week of pregnancy, plasma levels start to rise, increasing total blood volume by nearly 50% by full term. This extra work can place more demand on your heart and lungs, making you more aware of your breathing.

As your baby grows, the uterus expands and pushes upward, especially during the third trimester. This pressure on the diaphragm reduces lung capacity slightly, which can contribute to breathlessness—even when resting or speaking for extended periods.

When Is It a Sign of Something Serious?

Although breathlessness is a regular part of pregnancy for many, it’s important to stay alert for symptoms that could indicate a more serious condition, such as heart or lung issues.

Warning signs may include:

  • Feeling like you can’t get enough air

  • Chest or throat tightness

  • Difficulty breathing while lying flat

These symptoms may require medical evaluation, especially if they appear suddenly or worsen over time.

When to Talk to Your Doctor

You should seek medical advice right away if you experience:

  • Chest pain or pressure

  • Discomfort in the back or shoulders

  • Irregular or rapid heartbeat

  • Dizziness or confusion

  • Difficulty catching your breath

  • Persistent nausea

If breathlessness significantly affects your daily activities or sleep, don’t wait to contact a healthcare provider.

How to Manage Breathlessness During Pregnancy

There are several practical steps to ease mild breathlessness:

  • Take breaks often. Climbing stairs or even walking quickly can feel harder than usual—pace yourself and rest when needed.

  • Adjust how you rest. Lying flat may compress your lungs. Try elevating your upper body with pillows to breathe more easily.

  • Practice mindful breathing. Slow, deep breaths can help reduce discomfort and promote relaxation.

  • Change positions frequently. Avoid staying in one position too long, especially if sitting or slouching, which can compress your lungs.

Frequently Asked Questions

Could breathlessness indicate preeclampsia?
Not necessarily. Preeclampsia may include breathing difficulties but is usually accompanied by other symptoms like elevated blood pressure, severe headache, blurred vision, or pain in the upper abdomen. Contact your doctor if you notice any of these signs.

When should I worry about shortness of breath?
If it comes with chest pain, heart palpitations, or makes it hard to speak or rest, it’s best to seek medical advice. These could be symptoms of a more serious issue.

When does breathlessness typically begin?
It may start early in the first trimester due to hormonal changes and can persist until delivery. As your body adapts to pregnancy, your breathing pattern also shifts.

Final Thoughts

Feeling short of breath during pregnancy is very common, often due to hormonal shifts and the physical demands of supporting a growing baby. While usually mild and manageable, it's important to monitor your symptoms and check with your healthcare provider if anything feels unusual.

With rest, breathing techniques, and proper body positioning, you can often reduce the discomfort and breathe a little easier as your pregnancy progresses.