Yes, you are doing the right thing. Hematuria can be a sign of bladder cancer, as well as other things, so it is important to get this checked by a urologist.
Tomorrow he will look inside the bladder with a small camera device. If he sees something "suspicious" he will probably schedule you for a TURB (transurethral resection of the bladder) where he will take small samples to send to a pathologist for analysis. While he may have an idea of what the problem is from the cystoscopy, it is only after he...and you...receive the path report that you will be sure of a diagnosis.
Please remember that many cases of bladder cancer can be highly curable when found early, so you are fortunate to be seeing to this asap.
Wishing you the best
Sara Anne