What physiological changes will my expecting wife go through during her pregnancy? Anything I should be prepared for?

To add on, other physiological changes include: Frequent Urination Heartburn Nausea/Vomiting Fatigue Sleep disturbances Constipation Hemorrhoids Back Pain Leg Cramps Swelling of the Hands and Feet Varicose Veins Be patient and understanding while keeping your wife happy and comfortable during these next few months!