Marydean, in reponse to the question about trusting CM, Your BBT Basal Body temperature is the main way to know that you have ovulated. You are defaintly right that temperature can be affected by many things- illness, travel etc. The length of time can vary in which you are fertile, you can have watery and eggwhite CM before you actually ouvlate so relying on just CM along would not be ideal in my personal opinion.

I temp, check CM and use OPKS and sometimes Ferning tests to work out when im going to Ovulate and when I have ovulated. Each cycle has proved a little different and if i relied on one, i would have missed the boat at trying to concieve.