While you are waiting for the classes to start this fall, I second (third?) the recommendation that you get a hold of Taking Charge of Your Fertility. If you give it a thorough reading, you’ll have a handle on the terminology and techniques before you go to the class, so you’ll have a leg up. Kind of like how we were supposed to read the text before the lecture in college. You’ll also see in the center part, where she has a lot of sample charts, what standard and non-standard situations look like. If you start charting now, you may actually be able to watch the Pill exit your system and your cycle return to normal.