Although it sure isn’t swell (especially when you try to squeeze into your shoes at the end of the day, when puffiness is at its peak), mild swelling of the ankles and feet caused by edema is harmless and perfectly normal. It's also just as normal not to experience noticeable swelling (one in four lucky pregnant women don't). However if your hands and/or face become puffy, or if swelling persists for more than a day at a time (it doesn't improve overnight), call your practitioner. Excessive swelling can be one sign of preeclampsia – but when it is, it's accompanied by a variety of other symptoms (such as elevated blood pressure, rapid weight gain and protein in the urine). If your blood pressure and urine are normal (they're checked at each prenatal visit), there's nothing to be concerned about.