Has anyone looked at their charts and discovered that your temps have been almost exactly the same the morning before ovulation happens? I started charting end of June so I have 4 charts so far to look back on and on every one of them my temp dips a little and goes up to 97.50 exactly and then boom...the next morning temp jumps up confirming the big O! Anyone else have this happen?!! Go back and look at your charts and leave a comment if you see a pattern every month!