Pregnancy is a beautiful journey, but it is also a powerful transformation for your body, especially your heart. As your baby grows, your cardiovascular system works harder than ever. And while many of these changes are normal and expected, there is a rising concern worldwide: maternal heart disease.

Your heart: The unsung hero of pregnancy

From the moment pregnancy begins, your body starts adapting in remarkable ways. One of the biggest changes? Your heart starts pumping more blood, almost 30% to 50% more by the time you are in your third trimester.

Here is what that means:

Increased heart rate: Your pulse quickens to move blood efficiently to your uterus and placenta.
Lower blood pressure (in early pregnancy): Blood vessels relax to accommodate the growing blood volume.
Higher blood volume: To nourish both you and your baby, your body makes extra blood.
Increased cardiac output: Your heart is working overtime to keep up with demand.

For most women, these changes are temporary and manageable. But for some, especially those with preexisting heart conditions or high-risk pregnancies, they can be dangerous.

The rising concern: Maternal heart disease

Heart disease has become a leading cause of pregnancy-related deaths worldwide. And it’s not just about having a preexisting condition; some women develop cardiovascular issues during or after pregnancy, even if they have always been healthy.

Common pregnancy-related heart concerns:

Peripartum cardiomyopathy (PPCM): A rare form of heart failure that happens during the last month of pregnancy or up to five months postpartum.
Preeclampsia and high blood pressure: Can lead to long-term heart problems if not managed.
Gestational hypertension: Increases the risk of stroke, heart failure, and future cardiovascular disease.
Heart arrhythmias: Pregnancy can trigger abnormal heart rhythms in some women.

Risk factors include:

Age over 35
Obesity or diabetes
Family history of heart disease
Smoking
Autoimmune conditions
Multiple pregnancies (twins, triplets)
Sedentary lifestyle

Warning signs you should not ignore

While shortness of breath and mild fatigue can be normal during pregnancy, some symptoms signal something more serious.

Call your doctor immediately if you experience:

Persistent or extreme shortness of breath
Chest pain or pressure
Rapid heartbeat (especially with dizziness)
Swelling in one leg or sudden weight gain
Fainting or near-fainting episodes
Severe fatigue that interferes with daily life

Protecting your heart during pregnancy

The good news? With early care, many heart-related pregnancy complications can be managed or even prevented. Here is how you can prioritize heart health during pregnancy:

1. Start with a pre-pregnancy checkup

If you are planning to conceive, talk to your doctor, especially if you have a personal or family history of heart issues.

2. Track your blood pressure and weight

Use a digital BP monitor at home and monitor weight gain to stay within healthy limits.

3. Eat a heart-healthy diet

Choose whole grains, leafy greens, healthy fats (like nuts and avocados), and stay hydrated. Limit salt and sugar intake.

4. Stay active

Unless advised otherwise, walking, swimming, or prenatal yoga are safe ways to support your heart.

5. Manage stress

Deep breathing, meditation, and gentle stretching can help lower your heart rate and cortisol levels.

6. Do not skip prenatal visits

Your OB-GYN is not just checking the baby, they are monitoring your whole body, including your cardiovascular system.

Postpartum: Do not let your guard down

Many heart complications show up after delivery, during the “fourth trimester.” Stay in touch with your doctor, especially if you notice any new symptoms like chest tightness or swelling.

Pregnancy is a time when all eyes are on the baby, but your health matters just as much. Understanding how pregnancy affects your heart is the first step in preventing serious complications. Listen to your body, stay informed, and do not be afraid to speak up when something feels off.

Your heart is strong, and with the right care, it can carry you and your baby safely through this incredible journey.