Grrrr, charting can be frustrating when you don't have a text book chart. It definately does take a few months before you'll see your personal patterns and find out what does & doesn't work for you. Remembering everyone is different and not everyone has text book charts.
MrsS,
You've got good advice from Georgi.
With all my love and respect, try not to look/stress into every rise and fall on your chart.... you'll see a pattern emerging after a few charts and you'll be able to overlay the charts to see the pattern &/or any changes (reduces any hmmmm.... getting your hopes up too high, only to be let down that AF arrived).

If you're thinking implantation, FF notes that it is only on hindsight that will be known.