Wow I was reading this thread over the weekend, it's all very interesting. I don't know if it would work for me, because I took my temp. early this morining after first reading Relle posts then just again about ten minutes and it was nearly .5 of a degree different. Both measurements were taken from under the same arm with the same thermometer, does this sound right to you all? Maybe I'm just wierd (DH would verify that one)

Good luck though Relle, I hope it's right for you I want another BB birth announcement