Oo mamsh, super normal yan! Ako rin parang naka-stop ang digestive system ko nung pregnant, maraming factors, hormones, ang bigat ng baby, lahat nag-slow down talaga. A few of us tried increasing water intake, eating more fiber-rich foods like papaya and oatmeal, at light walking, and it helped nang konti. Pero kung talaga namang worried ka or it's really bothering you, best to check with your OB lang para may peace of mind ka, baka may suggestions din sila specific sa iyo at safe during pregnancy. You're doing great at 31 weeks na!