Erin~ When your temp goes up (I think .4 degrees or so) and remains that way for 3 days, then you O'd. You O the day BEFORE the temp spike. So there really is no real way to tell with temps before you O. Unless you kinda have a feeling. I am not sure about OPK's
Okay, we do need to make this faster...I am 4 dpo....I have nothing fun to share....nothing at all. This part is so boring!!