There are many things that determine whether our weight goes up or down, not just the food we consume. Weight loss is not necessarily linear on a day to day basis. What is important is the trend over time not the daily fluctuations. This is why some people don't weigh every day. The scale is just not a reliable daily indicator of progress. So keep doing what you are doing and don't pay so much attention to the scale. Maybe even skip weighing yourself for a couple days or weeks even. Just follow your plan.