Might be worth charting anyway. Do you have the book Taking Charge of Your Fertility, by Toni Weschler? Amazing book. Talks about all the different signs of fertility and was such an eye-opener for me.
You might get a sense from charting about whether your cycle is ramping up to get started, or whether you're not making any progress toward ovulating again.
Zone diet on and off for several years....worked, but too much focus on exact meal composition
Primal since July 2010...skinniest I've ever been and the least stressed about food