Fingerprint requests are asked if something in your details (name/ DOB/ address) matched up with some of the database... but if that's the case, it usually doesn't seem to delay by much... may be 3-4 weeks or did u say that the FP would take 2 weeks just to reach CIC? Make sure to get the digital FP, which is way faster to transmit and receive, though more expensive, I have heard... again ppl on this forum, not my experience....
Looks like Ottawa has one day in Nov (Nov 23 8:45) as per the official listing for ceremonies... so 3rd week of every month for Oath ceremonies in Ottawa seems to pan out... I guess, they would take Dec off, being so close to the holidays...