I don't think you can determine anything based on one week. Maybe your points are too low, maybe they're not. Even on the Biggest Loser where people were doing completely extreme things to lose weight, there were times when someone worked out like mad and ate very carefully and lost little to no weight that week. Then the next week they would lose double the "usual" amount. This is just the way the body sometimes loses.
You can drive yourself crazy trying to determine why a weigh-in isn't what you expected. You can't look at any one weigh-in and try to make judgements by it. If after three to five weeks of consistent behavior, you still haven't seeing significant loss then you can start tweaking.
I think if you try to tweak based on just what happened the week before, you end up changing your plan every week, and never notice a true pattern.


