I tried charting my temperature before we got married and my temperature is erratic! The temp charts told me NOTHING! I was all over the place as my body doesn't regulate it's temp real well! I know the tests are positive as I was getting all definite negatives until 5 days ago. Last month we did EOD for part of my FW and no baby : I just don't want to miss my chance! I will check out that site though, thanks!
Even if everything is perfect you only have about a 20% chance each cycle.
I know temping can seem erratic at first but usually it is somthing you can figure out. Like when I first tried temping orally it was just a no go for me because I am a mouth breather, my temps were all over the place. Then I tried temping vaginally and althought I am still working on my consistency my temps are much more in check.
It also takes alot of the stress out of TTC because you feel much more in controll.
Try checking out Fertility Friend or clicking on the chart in my signature. They have a bunch of little tutorials that give you lots of solid info about your body and how it all works.
ETA for grammar