Nikki, - If you are going to change, then delete the old temps. I dont temp during AF, and I dont think it makes any difference. I do find that it is more accurate than in the mouth, especially if you are an open mouth sleeper!!! Good Luck!!!

For the others, if you are changing, then wait till next cycle, cause tems will be higher down there, than in your mouth. But hopefully you wont need to.

Good luck!!!