Shortness of Breath at 35 Weeks Pregnant
Shortness of breath is common in the second and third trimesters as the growing uterus pushes up against the diaphragm, reducing lung capacity. Some breathlessness with exertion is normal.
👶 What's Happening at Week 35
Your baby is now the size of a spaghetti squash.
- The kidneys are fully developed.
- The liver can process some waste products.
- Physical growth slows, but brain growth continues rapidly.
🔬 Why You're Experiencing Shortness of Breath at Week 35
- Growing uterus presses on the diaphragm, reducing lung expansion
- Progesterone stimulates the respiratory center, increasing breathing rate
- Increased blood volume requires more oxygen circulation
- Anemia — reduced red blood cells carry less oxygen
- Nasal congestion reducing airflow
💊 Relief Tips for Week 35
📋 Other Week 35 Symptoms
⚠️ Call Your Doctor If…
- Sudden, severe shortness of breath at rest
- Shortness of breath with chest pain or rapid heart rate
- Shortness of breath with coughing up blood
- Blue tinge to the lips or fingertips
Frequently Asked Questions
When does shortness of breath start in pregnancy?
It typically becomes noticeable in the second trimester (around weeks 13–27) and is most pronounced in the third trimester when the uterus is largest.
Does the baby drop help breathing?
Yes — 'lightening' (when the baby descends into the pelvis near the end of pregnancy) relieves pressure on the diaphragm and makes breathing easier.
Can shortness of breath hurt my baby?
Normal pregnancy breathlessness does not harm the baby. Your body automatically compensates to ensure the baby receives adequate oxygen.
Is shortness of breath worse with twins?
Yes — multiple pregnancies often cause more pronounced breathlessness because the uterus is larger.