[header] How to prevent acid reflux during pregnancy [title] Eat smaller meals more frequently. [step] Another recommendation for combating heartburn is to eat smaller portions of food spaced out through the day. Eating smaller meals every few hours instead of three large meals many hours apart prevents your stomach from becoming too full and putting pressure under your diaphragm and pushing acid up into your esophagus. 
As such, switch to eating 5-6 small meals or snacks daily spaced about 2 hours apart. [substeps] Your last meal or snack of the day should be eaten early in the evening, at least 3 hours before you head to bed.