You can fill a whole week and end it in the same place you started. Answering messages, tweaking a logo, watching one more training. All real work. None of it moved the actual thing forward.
The test isn't "did I stay busy." It's "is the actual thing closer to done than it was Monday." Those are two different questions, and only one of them matters.
Be honest: closer to done, or just busier? No wrong answer, just curious where people actually are.