I agree, it could still be your body just getting used to being off the pill. Especially if you were on it for a long period of time. My first cycle off the pill I ovulated on CD30 and got pregnant. Unfortunately I miscarried at 9 weeks. After my miscarriage my Dr prescribed my clomid to move my ovulation date up. I knew in my case it was not just me coming off the pill as I have always (even since a teenage) had really long cycles, 45+ days. Clomid helped to move my ovulation date up to CD 19-20 so not a large jump but I did conceive my third cycle on Clomid and Im now 12 weeks pregnant.
If you continue to have long cycles you might consider talking to your dr.