It really could have been the oral surgery that is creating the long cycle. I think the medication you were on could easily have fooled your body into thinking it was already Oing. Then going off the medication probably confused your body.
The second question... I have no idea. I have been trying to figure that out. This waiting thing is killing me. I feel like I have become more obsessed about wanting a child. However, I have become less obsessed with my cycle! I have tried to keep occupied with scrapbooking and lately organizing (although its more like "throwing out" than "organizing"). If you find something that works let me know
I will tell you that the acupuncture I have been doing has been helping me relax.