Let's be logical.

You have increased your water intake so remember that your body will use that water to plump up the fat cells and that will prevent downward movement on the scale. But be patient, eventually those cells let go of the water.

You have also mentioned that you are very constipated. That is adding to the fact that the scales aren't moving downward either.

As everyone else has already said. You NEED fibre (in the form of green carbs--veggies, lettuce, etc) and that will help move things along as well. Either that or a lot of fat. If your fat intake is very high it usually leads to the opposite of constipation.

This is all part of the process. Of course we all want the fat to be dropping off our bodies RIGHT NOW but you also need to be listening to your body and learning how it works and what it needs to "feel" healthy and right.