Look on the bright side Shelley, maybe you gained weight in your feet, or ankles, wrists, hands, face, upper back, elbows, pancreas...Hey, were you holding your breath? Or maybe you picked up a face-hugger, chest bursting alien somewhere? Seriously, though did you eat a meal larger or perhaps slower digesting before you weighed yourself? It could be a change in your digestive times or some extra layers of fat on the back of your head!
Mattea