I started keto almost 3 weeks ago. I bought the urine strips to start out to track my progress but now i bought a keto blood monitor . Last week when I first got the monitor ghe readings would say I’m in or close to the moderate range. I would get readings like 1.5 and 1.8 but now a week later my readings stick between 0.8 and 1.2 . I am feeling discouraged because im eating the same foods as before . It’s hard to hit my macros because I feel like I never eat because I’m never hungry. I do however make a point to make sure I’m at or under 20 carbs a day. I recently started drinking coffee but I like sugar with it but of course I use stevia . I wondering if the coffee and even the stevia could be yielding lower results and I should cut out sugar ( by sugar I mean stevia) all together and coffee. Initially I started dieting April 2. I was just on a eat healthy kinda diet lol I lost 6 pounds from April 2-April 16 on my normal diet . I started keto April 16 and from the 16 to May 7 I lost a total of 5 pounds. I weigh myself every week on Monday so my next weigh in is may 14. I know I have progress but Iv seen so many like " 10 pound sterling lost in a week " keto stories and I lost only 3 my first week. I feel discouraged yet I know I’ll keep going , I just wish my damn blood monitor would register higher numbers. Please shed some light on the situation
Where could I be going wrong
Don’t worry about your readings. Anything above 0.5 is a sign that you’re ketotic, and a higher level is not necessarily better. Not only that, but the meter is measuring the beta-hydroxybutyrate circulating in your bloodstream, which tells you nothing about how much your’e burning or how fat-adapted your body is at this point. The fact that you are ketotic, however, does tell you that your insulin level is low enough for your body to metabolize fat instead of glucose—too high a level of insulin inhibits the production of ketones.
At three weeks in, it is not really likely that you are fully fat-adapted yet, but it does sound as though your satiety signaling is working as it is supposed to.
The stevia may or may not be a problem for you, but be advised that every non-caloric sweetener causes an insulin spike in someone, and almost everybody reacts badly to at least one non-caloric sweetener. I may be exaggerating a bit here, but the point is that stevia could be having an unwanted effect, but it might also be just fine. You’ll have to do some experimenting.
I can tell you, however, to be careful about the ingredients list, because some stevia is mixed with sugar or maltodextrin, and some is mixed with erythritol. And you don’t want sugar or maltodextrin for obvious reasons, and erythritol is another non-caloric sweetener that might or might not be causing you an insulin spike. Still with me? (BTW, one of the reasons stevia is usually mixed with some other sweetener is to cut the unpleasant aftertaste many people experience.)
Lastly, don’t give up just yet. Three weeks is barely the beginning, and anyway keto is not a diet but a way of life. Its main benefit is metabolic healing, only part of which is weight loss. And weight loss is a highly variable phenomenon. If you would like to post your weight, height, and other info, as well as the details of what you’re eating, people will be very happy to make suggestions. Also, women’s bodies often add lean mass while losing fat, so the scale isn’t always a reliable indicator of progress. Please keep us posted, and keep ketoing on. Here’s some virtual bacon to encourage you: 
Kellie
You are doing just fine, you must Keep Calm and Keto On. Pure and simple.
It is not a miracle cure and takes some time to work. Everyone’s experience is different. Just follow the process. The only thing you are doing wrong is being impatient! 
Cheers
Alec