Tackling Heart Palpitations in Pregnancy

By Dr. Priya Sammani ( MBBS, DFM )

You’re curled up on the sofa, finally taking a moment for yourself, and then – thump-thump-flutter. Your heart suddenly feels like it’s doing a little tap dance in your chest. It might be racing, or skipping a beat. If this sounds familiar, especially during pregnancy, you’re certainly not alone. Many expectant moms come to me describing exactly this sensation, often with a worried look in their eyes. Those feelings are what we call heart palpitations in pregnancy, and more often than not, they’re just one of the many ways your amazing body is adapting to growing a new life.

So, what exactly are we talking about? Heart palpitations are when you suddenly become aware of your heartbeat, and it feels… well, different. It might seem like it’s pounding, going too fast, or even fluttering. Some women tell me it feels like an extra beat, or like their heart briefly pauses. It can be a bit unsettling, can’t it?

Why Does This Happen During Pregnancy?

Pregnancy is a time of incredible change, and your heart and blood vessels are right in the thick of it. Think about it: your blood volume increases by almost 50% to support your growing baby! That’s a lot of extra work for your heart, pumping all that blood around your body and, crucially, to your little one. To keep up, your heart rate naturally speeds up a bit. This extra effort can sometimes lead to those noticeable palpitations.

There are a few common things that can make heart palpitations in pregnancy more likely:

  • Anemia: This is when you have a lower red blood cell count. It’s pretty common in pregnancy because the fluid part of your blood increases more than the red cells.
  • Anxiety and Stress: Let’s be honest, pregnancy can be a whirlwind of emotions and sometimes stress. These feelings can definitely trigger palpitations.
  • Dietary Triggers: That extra cup of coffee, a bit too much chocolate, or even meals high in carbs, salt, sugar, or fat can sometimes get your heart racing.
  • Dehydration: Your body needs more fluids than ever. Not getting enough can throw off your electrolytes – those important minerals that help control your heart’s rhythm.
  • Extra Weight: Carrying extra weight before or during pregnancy can sometimes put a little more strain on the heart.
  • Hormonal Shifts: Those pregnancy hormones, especially estrogen, are doing all sorts of things, and they can influence your heart rate too.
  • Low Blood Sugar (Hypoglycemia): This can pop up, particularly in the first trimester.
  • Low Blood Pressure (Hypotension): Another common finding during pregnancy.

Now, while most palpitations are benign, sometimes they can be a clue that something else is going on. Less commonly, they might point to:

  • An underlying arrhythmia (that’s just a medical term for an irregular heartbeat), like atrial fibrillation (Afib). If you had a heart rhythm issue before pregnancy, it might become more noticeable now.
  • Myocarditis, which is an inflammation of the heart muscle, usually after a virus.
  • Thyroid issues, like an overactive thyroid (hyperthyroidism).
  • Structural heart problems, perhaps involving a heart valve.

Feeling That Flutter? Here’s What We Look For

When you tell me about these palpitations, the first thing I’ll do is listen. To you, and to your heart. I’ll ask about your symptoms – what they feel like, when they happen, how long they last.

To get a clearer picture, we might suggest a few things:

  • Blood tests: A complete blood count (CBC) is a good starting point. It helps us check for things like anemia, signs of infection, or even if your thyroid is working as it should.
  • An electrocardiogram (EKG or ECG): This is a simple, safe test where we stick a few sensors on your skin to record your heart’s electrical activity. It usually takes about 15 minutes. Sometimes we do it while you’re resting, or maybe while you’re doing some light exercise, like walking on a treadmill.

The tricky thing with palpitations is they don’t always happen on demand, right? So, if your EKG is normal but you’re still having symptoms, we might use something called an ambulatory electrocardiogram, often a Holter monitor. It’s a small, wearable device that you’d keep on for a day or two, or sometimes up to two weeks. It just quietly records your heart’s activity while you go about your normal life, helping us catch any of those irregular beats.

What Can We Do About Pregnancy Heart Palpitations?

For most women, the good news is that these heart palpitations in pregnancy don’t need specific medical treatment. If they’re occasional and we’ve ruled out any underlying concerns, we usually focus on simple lifestyle tweaks. I often suggest:

  • Staying well-hydrated: Drink plenty of water. Your body is working overtime! And it goes without saying, but alcohol and nicotine are definite no-gos during pregnancy – they’re not good for your baby and can make palpitations worse.
  • Watching your diet: Try to limit caffeine (maybe stick to one cup of coffee), sugar, and very fatty or salty foods. See if that makes a difference.
  • Relaxation techniques: Deep breathing can be surprisingly powerful. Inhale slowly through your nose, and exhale slowly through your mouth. Meditation or gentle prenatal yoga can also be wonderful for managing stress.

If there is an underlying heart condition or another health issue causing the palpitations, then, of course, we’ll work together. We’ll create a treatment plan that’s safe for both you and your baby. Sometimes, medications like beta blockers might be considered, but we’d always have a thorough chat about the benefits and any potential risks. We’ll discuss all options for you.

Take-Home Message: Your Heart and Your Pregnancy

Here’s what I really want you to remember about heart palpitations in pregnancy:

  • They are very common, especially as your pregnancy progresses. Your body is doing amazing work!
  • Most of the time, they are not dangerous and often resolve after your baby arrives.
  • Lifestyle adjustments like staying hydrated, managing stress, and watching your diet can often help.
  • Always, always tell your doctor or midwife about them. We want to know!
  • If palpitations come with chest pain, serious trouble breathing, dizziness, fainting, or severe swelling, get medical help straight away.

It’s natural to worry when you feel something unusual with your heart, especially when you’re carrying your precious little one. But please know that we’re here to listen and make sure both you and baby are healthy and well. You’re doin’ great.

Dr. Priya Sammani
Medically Reviewed by
MBBS, Postgraduate Diploma in Family Medicine
Dr. Priya Sammani is the founder of Priya.Health and Nirogi Lanka. She is dedicated to preventive medicine, chronic disease management, and making reliable health information accessible for everyone.
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