Edema, otherwise known as swelling, will affect almost all women at some point during their pregnancy. Swelling or Edema is most often the result of excessive levels of hormones coursing through your body.
Really, the best thing you can do to combat swelling is to drink far more fluid. It may seem counter intuitive, but the more juice and water you drink the less water your body will hold onto and the less puffy you will be. You should be working to drink at least 10 eight ounce glasses of water per day. Also try to avoid diuretic beverages such as tea and coffee, which contain caffeine. These are more likely to dehydrate you than invigorate you during your pregnancy.
You might also consider wearing some support stockings during your pregnancy. These will not only help combat swelling, but may help prevent or minimize the effects of varicose veins later in pregnancy. Most medical care suppliers carry support hosiery that works well for women during pregnancy.
You should look for support hose with a medium grading minimum, meaning they provide firm support. Compression hose can often be purchased online. You can also ask your healthcare provider where you might purchase a pair or two.