According to an older study from 2010, severe acid reflux or gastroesophageal reflux disease (gerd) affects about 80% of pregnancies heartburn can develop at any stage of the pregnancy, but it is. Chronic heartburn in pregnancy. Heartburn can fire up, so to speak, at any point in pregnancy, but it’s most common during the second and third trimesters experts aren’t exactly sure what causes the smoldering, but they.
chronic heartburn in pregnancy