Dizziness & Lightheadedness
Feeling faint, dizzy, or lightheaded especially when standing up or in hot environments. Common throughout pregnancy.
Medically reviewed by healthcare professionals | Last reviewed: March 2026
📅 When It Occurs
Can occur throughout pregnancy, common in first and second trimesters
📊 How Common
Affects 40-60% of pregnant women
Overview
Dizziness during pregnancy can range from mild lightheadedness when standing up to feeling like you might faint. It's caused by your cardiovascular system working hard to adapt to increased demands.
Your blood pressure typically drops during pregnancy, especially in the first and second trimesters, which can cause that woozy feeling. Additionally, your blood vessels are expanding and your body is working to circulate 50% more blood than normal.
While usually harmless, severe or frequent dizziness should be discussed with your doctor, as it can sometimes indicate anemia, dehydration, or other issues requiring attention.
📆 By Trimester
First Trimester
Common due to blood pressure changes and morning sickness
Second Trimester
Continues as blood volume increases
Third Trimester
May worsen due to uterus compressing blood vessels
🔍 What Causes It?
- •Lower blood pressure as blood vessels relax and dilate
- •Blood pooling in legs when standing
- •Growing uterus compressing blood vessels
- •Low blood sugar from irregular eating
- •Anemia (low iron levels)
- •Dehydration
- •Standing up too quickly (orthostatic hypotension)
- •Lying flat on back in late pregnancy (supine hypotensive syndrome)
- •Overheating or stuffy environments
💡 Relief Strategies
- ✓Stand up slowly - sit at edge of bed for a moment before standing
- ✓Avoid lying flat on your back after first trimester - lie on left side
- ✓Eat small, frequent meals to maintain stable blood sugar
- ✓Stay well-hydrated - drink 8-10 glasses of water daily
- ✓Avoid standing for long periods - move around or sit when needed
- ✓Wear loose, comfortable clothing
- ✓Avoid hot, stuffy environments
- ✓If dizzy, sit or lie down immediately
- ✓Lie on left side if feeling faint
- ✓Eat iron-rich foods or take iron supplements if recommended
- ✓Take prenatal vitamins regularly
- ✓Avoid skipping meals
⚠️ When to Call Your Doctor
Contact your healthcare provider if you experience:
- ⚠Fainting or losing consciousness
- ⚠Dizziness with vaginal bleeding
- ⚠Severe headache with dizziness
- ⚠Dizziness with chest pain or difficulty breathing
- ⚠Blurred vision or visual disturbances with dizziness
- ⚠Persistent dizziness that doesn't improve
- ⚠Dizziness with numbness or tingling
📅 Explore by Trimester
Learn how this symptom and others change throughout your pregnancy journey: