It's a good site and I've already visited it before thank youIt looks like you are doing the right thing by checking the effect of foods on your blood sugar. To some extent, we all react differently.
Fenugreek is not especially low-carb, in fact it has 6 grams of carbs in an 11-gram tablespoon.
Try this website: https://www.dietdoctor.com/low-carb#advice. It is a very good place to get a general idea on carbohydrates in your food. It can save some time, instead of testing everything on your meter!