I recently questioned if hormones were connected to heartburn
. I googled "hormones heartburn
this was the general result:
Pregnancy hormones, estrogen and
progesterone, can cause the lower esophageal sphincter (the muscular valve between the stomach and
esophagus, or LES) to relax, allowing stomach acids to splash back up into the esophagus. In addition, the enlarged uterus can crowd the abdomen, pushing stomach acids upward.