Meanwhile, hormone changes during pregnancy slow down your digestive system.Later in your pregnancy, the pressure from your uterus on your rectum may also worsen the problem.You can ease constipation by:Eating raw fruits and vegetables, such as prunes, to get extra fiber.Eat whole grain or bran cereals for more fiber.Drink plenty of water (8 - 9 cups daily).Ask your doctor about a stool softener.