Heartburn is very common in late pregnancy and completely normal. For safe, quick relief, antacids containing calcium carbonate are the preferred first-line option. Antacids with magnesium hydroxide or aluminum hydroxide are also generally safe. Please avoid products containing sodium bicarbonate, as they can cause fluid retention. If these do not help, H2 blockers like famotidine may be used under medical supervision. To help your sleep, try eating smaller meals, avoiding food for three hours before bedtime, and elevating your head with extra pillows. Always consult your OB-GYN before starting any new medication to ensure it is safe for your specific pregnancy.