Week 36 · Third Trimestermoderate
Heartburn & Acid Reflux at 36 Weeks Pregnant
Heartburn affects up to 80% of pregnant women, particularly in the second and third trimesters. It occurs when stomach acid backs up into the esophagus.
👶 What's Happening at Week 36
Your baby is now the size of a swiss chard.
- The baby sheds most of the lanugo (fine body hair).
- Fat continues rounding out the cheeks and body.
- The digestive system is ready to process breast milk.
🔬 Why You're Experiencing Heartburn & Acid Reflux at Week 36
- Progesterone relaxing the lower esophageal sphincter (the valve between stomach and esophagus)
- Growing uterus pushing stomach upward, reducing its capacity
- Slower digestion during pregnancy allowing more acid production
- Eating habits and food triggers
💊 Relief Tips for Week 36
1
Eat Smaller Meals5-6 small meals instead of 3 large ones keeps the stomach from overfilling.
2
Stay Upright After EatingWait at least 2-3 hours after eating before lying down.
3
Elevate Your HeadProp up the head of your bed 6 inches with blocks, or use extra pillows.
4
Avoid Trigger FoodsCommon triggers: spicy foods, citrus, tomato, chocolate, fried foods, and carbonated drinks.
5
AntacidsCalcium-based antacids (Tums) are safe during pregnancy. Avoid antacids containing aluminum or sodium bicarbonate.
📋 Other Week 36 Symptoms
Pelvic pressureFatigueBraxton Hicks (intensifying)SwellingDifficulty breathing
See full Week 36 guide →⚠️ Call Your Doctor If…
- Heartburn so severe it prevents eating or sleeping
- Difficulty swallowing or pain when swallowing
- Vomiting blood or dark-colored vomit
- Unexplained weight loss alongside heartburn
Frequently Asked Questions
Does heartburn mean my baby will have lots of hair?
Surprisingly, a 2006 Johns Hopkins study did find a correlation! But heartburn is caused by hormones and anatomy, not baby's hair.
Is Pepcid (famotidine) safe during pregnancy?
Most doctors consider famotidine safe during pregnancy when antacids aren't sufficient. Always consult your provider before starting any medication.
Will heartburn go away after delivery?
For most women, yes — heartburn resolves within days to weeks after delivery as hormone levels normalize and the uterus shrinks.
Medical Disclaimer: This content is for informational purposes only and does not constitute medical advice. Always consult your OB/GYN or midwife about symptoms during pregnancy.