Well I have done some googling (of course) and if by example my pre pregnancy levels are 2 then if i did indeed implant at 6dpo when I have the temperature dip then my levels would only be 4 today, then 8 tomorrow then 16 on monday, clutching at straws maybe but logical!
I always though you were supposed to avoid FMU with Ovulation tests and test around 2.30pm?