“During pregnancy, there is a slight tilt of the body forward,” says Philadelphia- based podiatrist Edward Chairman, D.P.M. “Because nature wants to compensate, the forefoot spreads and the arch flattens, causing the foot size to increase.” Additionally, the extra weight of pregnancy puts pressure on the veins in the legs, causing your feet to swell.
Chairman recommends being fitted for an orthotic (a device worn inside the shoe that can help correct posture) and, for best results, to do so early in your pregnancy. Post-pregnancy, an orthotic can help prevent further damage.
And, of course, when possible, Chairman encourages both prenatal and postpartum women to “sit down and put their feet up.”