Weight / Fat loss

If you've upped your exercise you might be building muscle. Muscle is heavier than fat so you weigh more. Measuring your body fat is probably a better idea.

You might just be retaining more water. Water weight will fluctuate a great deal, especially when beginning to lose weight and/or increasing your exercise. That's also something that will affect women more than men, short of filing a bug report with the designer, there's not a great deal you can do about that. Although trying to stay properly hydrated and limiting your sodium intake should help.

In addition to these, how do you actually feel, Nhatt? Do you feel more powerful or fitter? That's an important indicator, too. Feeling positive about changes is a powerful driver and can indicate that you're on the right way.

If you've been relatively inactive for a long time, it may simply take longer for change to become apparent, especially if you're a person for whom physical changes take a while. The best advice is to persevere, as exercise is clearly a good thing.

I've also heard that one should concentrate on becoming more powerful first so that low food intake doesn't compromise developing that power, and that the weight will fall away more or less naturally once you're able to push yourself more.