I know exactly how you feel. Since coming off the pill, my AF has been antyhing from 26 to 39 days!! This erratic behaviour on the part of my body has me all confused (not to mention my hub...poor man...), so I have decided to start doing the temp thing. I joined fertility friend, and have been charting my temps, it actually makes it heaps easier to interpret and see what's going on. I think it also brings you more in tne with what your body does each cycle...
With regards to timing the temps, I am a shift worker (sometimes the graveyard shift finishing at 7am), so I read up on when the best time to take a temp is. Apparently, as long as you sleep for 3 solid hours prior to taking a test, it should be OK (although maybe not as reliable as testing the exact same time each day). If you want, setting an alarm to wake you for a temp is a good idea! My temps are varying by 0.1-0.2 of a degree when I sleep for three hours prior. So I guess it's as reliable as I can make it!
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