Noknok, Ceres, Ann,
I didn't drink any water before weighing and not possible water droplets left on the body can make me put on 0.5kg leh, that's why it's so weird. And yes, I do weigh myself everyday and I get a little worried when I find myself losing weight, because I'm afraid bb isn't growing well.
But luckily, till date I've put on a total of about 2.5-3kg. Mummies who have weighed heavier than before, take heart cos this indicates that your BB is doing well.