How long between temp drops and AF arrives?

[Blackrain90]

My temp took a good drop yesterday 13DPO and today is lowest it's been all cycle. I've had mild cramps the past 4 days with today's getting quite uncomfortable (tylenol worthy) as well as constipation and wicked mood swings (I cried because hubby messed me up when recording my voicemail, and again because I didn't like the toilet paper he bought). Add in about a hundred BFN, and yet here I am at 10pm with no AF.

Last time we ttc my temp usually dropped the day of or after AF (mind you I also used to ovulate CD22 but was CD10 this month so I don't think looking at old cycles will help me lol), just wondering when other peoples temps usually drop before AF?

 

[HungryM3]

Mine drops below coverline day of AF

 

[Angel_blues]

Mine too, it drops the day it's suppose to arrive...

 

[Blackrain90]

It's still low today but slightly above my coverline, no cramps or AF yet.