Weeks 6-40

Dizziness & Lightheadedness

Last reviewed by medical team: June 2026

🔵 Common Pregnancy Symptom

Why It Happens

Progesterone relaxes blood vessels, causing blood pressure to drop. Standing too quickly, low blood sugar, or lying on your back can also trigger dizziness.

Safe Home Remedies

Rise slowly from sitting or lying down.
Eat small, frequent snacks to maintain blood sugar.
Never lie flat on your back in the second/third trimesters.

⚠️ When to Contact a Doctor

Call your doctor if dizziness is accompanied by fainting, chest pain, palpitations, or severe headaches.

Related Guides & Resources

Typical Week Ranges

This symptom commonly occurs during these weeks of pregnancy:

Week 6 Week 12 Week 18 Week 24 Week 30 Week 36

Related Conditions

Symptom matches for these prenatal conditions:

✦ Gestational Diabetes ✦ Preeclampsia

Clinical Questions & Answers

Q1: Why do I feel dizzy when standing up?

Blood pools in your lower limbs, causing a temporary drop in blood pressure.

Q2: Can lying on my back make me dizzy?

Yes, the uterus compresses the vena cava, reducing blood flow back to the heart.

Q3: What should I do if I feel faint?

Sit down immediately, put your head between your knees, or lie on your left side.