Heartburn is a pain in chest and upper abdominal cavity, sometimes accompanied by an unpleasant taste in mouth or burping. For more information, see hiatus hernia.
This discomfort affects almost half of all pregnant women. Namely, in pregnancy the muscles that separate the upper part of the esophagus become loose (as well as many other muscles), which allows the entry of gastric acid into the esophagus and irritates its sensitive mucous membrane. In late pregnancy, the condition gets worse as the uterus spreads and presses the stomach. Heartburn is harmless and almost always disappears after childbirth.
What to do?
You can reduce the frequency of heartburn to as little as possible with frequent or small meals. In that case, there will always be food in the stomach that will ”absorb” the acid. If this does not solve the problem, go to a doctor who will probably prescribe antacid (a gastric acid drug).