Hey Lil!!! I wouldn't worry about reducing calories or such, unless your weight loss has stalled for more than 3 weeks. As in dead stop. Just concentrate on staying less than 20 carbs.
If you stall then it might be time to reevaluate. People who are larger, need higher calories to maintain just bodily functions. As you lose this will go down. That is the time to investigate your options.
But as always YMMV, do what is best for you!!