One of the traps we make for ourselves is thinking that weight loss is just a simple math problem.
It is far more complicated than a simple calories in - calories burnt equation.
You, for example, are comparing two weeks without realising that all the background variables have changed.
You weighed 2.3 kilos different in those weeks.
Which meant that you were carry that weight around when you were exercising...and working harder.
Also you are getting more fit. Routine has developed you muscles and it now copes well with the demands you have put upon it.
Your body motor is finely tuned to those demands and burns efficiently as it can.
Routine is not a friendly ally to weight loss.
Professional athletes have long discovered that smarter training isn't based on doing the same things all the time.
Their training is mixed up. This is in order to keep the body on "it's toes" so to speak.
They will vary their training days. Some days are easy days, some are moderate and others are flat out.
Also they will do something completely different than their own discipline.
For example, runners will lift weights and footballers will swim.
When I was losing weight I would vary the intensity of my work outs.
Some days I'll just "cruise" on the exercise bike whilst the next day I'll try and go flat out and see if I could set a new benchmark.
Same went for my walking and running.
I never had a significant weight loss result the morning after a swim but I knew that different exercise it was affording me was of overall benefit to my weight loss. My lungs were increasing in efficiency and muscles not used in other exercise were being developed.
It is easy to get stuck on routine. But it is pressing forward that results happen.
It is no mistake that when I started weight loss, no exercise was required.
Soon 10 minutes of walking yielded results. At the end of the journey three hours of exercise was common.
Remember however that the 10 minutes was done carry 87 kilos of excess weight!
Try mixing it up a bit.
You will find it may help get better results.