sorry i am actually 11dpo
I wondered the same thing. You might want to look on fertilityfriend and you can see samples of pregnant womens' BBT charts so that you can compare. I'm sure you'd see some dips in there but not sure of the degree.
It could mean a/f is on it's way..My charts never take a sharp dip they kind of roller coaster down...until A/F arrives..
My advice if the temp stays low a/f is on it's way...
sounds like you corpus luteum is breaking down and af will start soon:(
Well any one day could be an anomole, but my temps always dropped gradually toward the end of my cycle until I got AF. This month was the first month they remained high and I got my BFP. I hope you have luck soon!
i had the same problem my temp went from 97.8 to 97.5 and 3 days later i got my af.i would see what your next couple of temps are in the next a day or 2 if you see your temps going down it probably means your af is coming.sorry im in the same boat.