Donna,
You ask the $1,000,000 question of how many and how often. The best guess I have read is 6 is how this originally was done and packaged. All I know is this works. For sure 6 seems to be good as a start. Then most have a maintenence schedule of 3 every 3 months for awhile graduating to 3 every 6 months and eventually a year. One very respected Dr. Herr of I think Sloan Kettering (now retired I think) did just 6. Mine did 6, waited 6 weeks then 6 more figuring if that didn't do the trick then a cystectomy was next. He theorized this as mine was small and caught early plus the risk of complications are there on every visit. There are more and different protocols.
It really sounds you are on a normal plan. I also guess a scope will be done when you are done. Anything earlier is meaningless as your bladder is probably in an unreadable/angry mode with inflamation from the BCG.