Indigestion (dyspepsia) is a term which includes a group of symptoms (detailed below) that come from a problem in your upper gut. The gut (gastrointestinal tract) is the tube that starts at the mouth and ends at the anus. The upper gut includes the gullet (oesophagus), stomach and the first part of the small intestine (duodenum). Various conditions cause dyspepsia.
This is a companion discussion topic for the original article at https://patient.info/pregnancy/common-problems-in-pregnancy-leaflet/dyspepsia-in-pregnancy