Before you cut into your fabric
The vast majority of draft problems are due to incorrect measurements. That's why you get your draft, plus a comparison.
This comparison is a way to check whether things are normal without having to be familiar with the pattern.
What should I look for?
You see a bunch of standard sizes in varying colours, with your own draft laid on top of it in gray.
If yours looks significantly different, something is wrong. Double-check your measurements, and if everything seems fine, set your draft to be shared and then report the problem.