Under calories and no weight loss

OP: I agree with those saying that 2 weeks doesn't give you enough experience data to have a clear picture of the trend. Four to six weeks would be good, whole menstrual cycles if that applies so that you can compare bodyweight at the same relative point in at least two different cycles. (Hormone-related water weight fluctuations can be that weird, for some. It's not the most common pattern, but I've seen a few women here say they only saw a new low weight at one point in the month, even when losing at a reasonable rate.)

In particular, a new exercise regimen can trigger extra water retention (needed for muscle repair), and that water can mask fat loss on the body weight scale for a period of time.

If you are exercising consistently with weights, your lack of weight loss can be to added muscle mass, and not because of calorie intake.

In two weeks? Sadly, I think not. I wish it were otherwise . . . so fervently wish!

Fat loss takes patience, as we all know. Muscle mass gain takes even more patience, usually substantially more.

Under ideal conditions, two pounds of muscle mass gain in a month would be a really good result. Ideal conditions would include things like relative youth, favorable genetics, a good progressive strength training faithfully performed, good overall nutrition (especially but not exclusively ample protein), relative newness to strength training, possibly male hormones, and a calorie surplus (i.e., weight gain).

It's not that muscle mass gain isn't possible in less than ideal conditions, but it's reasonable to expect that it will be slower than that 2 pounds per month.

On the flip side, half a pound a week (that same two pounds a month) is about the slowest fat loss rate that most people might consider satisfying. Even that might not show up on the bodyweight scale in less than several weeks, in a context where multiple-pound water weight fluctuations from one day to the next are the norm.

The sad but inevitable conclusion is that no realistic rate of muscle mass gain is going to outpace any reasonable rate of fat loss on the body weight scale, when in a calorie deficit. Oh, how I wish it were otherwise!

Noting, however: Strength gain will usually be much faster than muscle mass gain for someone newly starting strength training. (It's from better recruiting and using existing muscle fibers, a.k.a. neuromuscular adaptation.) Since strength is useful in daily life, that's more than worthwhile. There can even be relatively quick appearance improvements: A little more definition from water retained in muscles for repair, better posture, and that sort of thing.

OP: Keep going, consistently, for at least another 2-4 weeks. If there are cheat days or slips or something in the scenario, log those honest so you know the impact.

Hang in there - losing a meaningful total amount of weight takes a long time, even if fat loss is relatively fast. Success rewards those who are patient. I know that's hard, from experience.

Best wishes!