Indigestion usually happens during the first trimester of pregnancy . There are several reasons for you to suffer from indigestion during pregnancy. The main cause being an abrupt change in hormones . Yes, an increase in the progesterone hormone can relax the sphincter muscles, thus resulting in indigestion. Another reason would be the growing bump, your growing baby exerts a lot of pressure on your abdomen, and hence, you encounter various gastrointestinal problems , such as heartburn, indigestion, vomiting, acid reflux , and so on. Book your next early pregnancy scan from Peterborough’s Renowned Ultrasound Baby Scan Clinic . As much as it’s common to face indigestion during pregnancy, the fact cannot be ignored that indigestion is a huge discomfort for several expecting women. Here are some symptoms that confirm indigestion in pregnant women. • Heartburn • Nausea and vomiting • Bloating and belching • Food regurgitation (a condition in which food starts coming back