I just came off the pill in june and I was on it for 12 years!!!
Being that it is half way through december now, my periods are still very irregular. This doens't happen to everyone, but people can suffer from "post-pill ammenhorea" - where your period does not come back on it's own for a while, or remember, that it can take sometimes 6-12 months for your body to regulate itself again back to "normal".
My af's were also regular when I started the pill.....Not sure what to think now! On the other hand, there are alot of ladies here that have stopped the pill, and returned to normal periods the following month. It all depends on your own body. Unfortunately, it will be time that will tell you!
Are you trying to get pregnant? The reason I ask, is that if your body does not respond for a long time, you can go in and see your doctor and they will run some tests on you and perhaps give you a pill to take to try and regulate your body again.
(they can also do this even if you're not ttc!)
good luck....Hope you body is better than mine