If you've very recently started exercising more, your muscles are holding on to water. That could account for it.
My own body is on a 2-3 week delay. If I overeat, nothing happens for a couple of weeks, then a jump. Same with weight loss that is not water (like those first couple of pounds after not dieting for a long time). It takes about 2 weeks for real fat loss to be reflected on the scale.



