Yeah, the charting stuff throws me off too. I havent used temping, I've only charted with Maybe Baby, but this month I didnt get any ferns at all. It also tells you that if you do it when it's full ferns for a boy and in the transitional, ferns and pebbles for a girl.
The prob w MB is that it doesnt seem to always correspond w ur body. So this started using OPKs as well, and monitoring mucus.

But my GP told me if u're TTC 1-6mths dont even bother charting cos you wil get stressed and it wont work. so just enjoy.
but's really hard when your window of opportunity is so tiny!!