I was messing around with it because Im not really sure if I belive I have Oed yet, so I took out my opk results and it moved my O date back to the 19th putting me at 7dpo insted of 5, this thing is going to drive me insane. WTH.
3 Early Miscarriages 4 rounds of Clomid
BFP = 11/16/10 ~ EDD July 29th 2011

Re: FF is going to drive me crazy!
Labor Buddy to Blowfish11
Yeah I know. I bought the new thermometer because my old one had gotten to where it would come on by it self in the middle of the night and beep like crazy and even sounded like it was shorting out sometimes, so I was kind of worried that it was not giving me correct temps. So I went out and bought a new one. When I got it I came home and took my temp over and over with both thermometers one in the mouth with one under the armpit to get the same reading at the same time and they were both reading the same thing. (given the 1 degree variation for oral vs. axillary).But I was going to wait until next cycle to start using the new one, that is until it started beeping like crazy at 2am and then DH picked it up and threw it, it hit the wall and broke. So I had to switch. But I started using it on CD 9 and my first temp jump was on CD 12. Anyhow I have been trying to BD at least every 2 days just to hope to hit the right time when ever it is.
I had trouble with my opk results,...they were wrong. I went by my temps.
Your temps will guarantee when you ovulated. OPK just helps let you know it is coming up. I think that is how it goes.