If you're only a week or two into your new eating/training plan, it might be too soon to start drawing conclusions. Fluctuations of a couple pounds during the week are completely normal even if you aren't actually gaining fat. I can easily go up or down 2-3 lbs due to water retention, not to mention training stress, other stress, sleep, etc. So I would stay the course a little longer before drawing too many conclusions.

One thing I find useful is to weigh daily and pay attention to the running average rather than reading too much into any one scale reading. TrendWeight makes this convenient.