Bleeding following Cystoscopy

I was diagnosed with bladder cancer in December 2016. I have had a total of three cystoscopies since then involving resection of a number of non-invasive high grade carcinomas. April twenty-sixth was the last cystoscopy. Inflammation was noted in the dome of the bladder. (Possibly from the previous initial series of six BCGs.) Five specimens were taken from various locations. Of significance was a 4-5 mm tumor in the posterior lateral section of the bladder neck. It was looped out with a resectoscope and ultimately diagnosed as a non-invasive high grade papillary carcinoma. Following the procedures Mitomycin C was instilled.
It has been four and a half weeks since the cystoscopy and blood is still evident in my urine. A urinalysis last week found no infection, but blood was evident at a level 2. We have temporarily put off the next round of BCGs till next week pending bleeding.
I have a number of concerns: 1. I have been told that bleeding up to six weeks following a cystoscopy is not uncommon. True? (I am on 20 mg Xarelto (Due to a single episode of bilateral pulmonoary embolisms in November 2015.) 2. Should I be worried about the injection of BCG if I am either bleeding a few days before BCG or post BCG? 3. Originally, the plan was to do a series of 3 BCGs (Following the initial series of six) . Now, I am told that the Urologist wants me to go through a series of six again (which I do not tolerate very well...putting it mildly). Is there any clinical justification for going through another series of six...or does three suffice? 4. Should I go off of Xarelto for a period of time when blood is detected (potentially putting me at risk for a blood clot) or drop back to a lower does of Xarelto or consider a different blood thinner such as Pradaxa or Eliquis?
Thanks for any advice on the above. Jim