Why Do Heart Flutters Become More Common During Pregnancy?

 

Pregnancy places extraordinary demands on the body, and the cardiovascular system is no exception. Many expectant mothers notice heart flutters, skipped beats or sudden thumps that can feel alarming, especially if they've never experienced them before.

Fortunately, most pregnancy-related ectopic beats are harmless.

Why Does Pregnancy Affect Heart Rhythm?

Several natural changes occur during pregnancy that can increase the likelihood of palpitations.

These include:

  • Increased blood volume

  • A higher resting heart rate

  • Hormonal fluctuations

  • Changes in the position of the heart as the baby grows

Together, these adaptations can make the heart feel more active and increase awareness of occasional ectopic beats.

Common Pregnancy Triggers

In addition to the body's natural changes, certain factors can make symptoms more noticeable:

  • Low iron levels

  • Dehydration

  • Stress and anxiety

  • Caffeine sensitivity

  • Lying flat on your back

Addressing these factors often helps reduce the frequency of palpitations.

When Should You Speak To A Healthcare Professional?

While most ectopic beats are benign, medical advice should be sought if symptoms:

  • Cause dizziness or fainting

  • Are accompanied by chest pain

  • Trigger severe breathlessness

  • Involve a sustained, racing heartbeat

The Bottom Line

Heart flutters during pregnancy are common and are usually a sign that the cardiovascular system is adapting to support a growing baby. Staying hydrated, monitoring iron levels and discussing symptoms with your midwife can help provide reassurance and support throughout pregnancy.

You may also find a Pregnancy Due Date Calculator useful for tracking key milestones throughout your pregnancy journey.

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