Hey i was searching around and i found this on the internet
Q: My temperature dropped for a day in the luteal phase, does that mean this cycle is a bust?
A: Not unless it stays down. Some people have a short drop that may go well below the coverline that is a secondary estrogen surge (which may be accompanied by mucus).
I adjusted my chart and i think that this may have happened to me ...i am gonna assume i am 7dpo plus i didnt know sleeping with your mouth open was a no no
and i have been....gonna try vaginally next cycle if there is one.