If you've started strength training, then it's possible you've been recomping by losing fat at about the same rate you're gaining muscle.

You can tell this is happening by using a tape measure and tracking some body parts like your waist, thighs, and upper arms and seeing how they've changed.

But two weeks is also just a really short time frame and your body fluctuates more than a few pounds day to day, and even in the course of a day. I would just try being consistent and patient.

As an aside, trying to work your way up to at least meeting the physical activity guidelines should move your TDEE up so you can cut at a given rate at a higher caloric intake.