I've not been temping before now, and I had sharp pinching - at 6 DPO about 30 pin pricks on lowest left abdomen and awful dull period like cramps,exactly like AF has already approached, all over 7-8 DPO.
At 7 DPO 5 am my temperature was a 35.6 - a significant low for me, since next morning though it's gone back up to 36.6 and maintaining for couple of days. So 8 DPO and 9 DPO are both at that significantly higher temp of 36.6 - a degree higher than the morning of the godawful AF like cramps, and the day after the pin pricks.
I've got about 5 days left to go for AF or BFP due Sunday. My question is around when might I see a temp drop in case I am not pregnant and AF is approaching?
Your temperature will stay high if you are pregnant. Typically 16 raised temperatures above the cover line can indicate pregnancy. Quite often in the evening if you take your temperature you might notice that your temperature is lower on the night before you get af.
homeaway - BBT (basal body temperature) should be taken after at least three hours sleep, preferably at the same time each morning after a nights sleep. Taking temperature at any other times of the day is not significant in any way. Also it is generally considered that 18 days of post ovulation temperatures in the biphasic pattern is indicative of pregnancy. A good website to go to is fertilityfriend.com
You misunderstood my post, I was not advocating replacing taking your temperature in the evening instead of the morning, of course you have to take your temperature after three hours sleep, before doing anything and at EXACTLY the same time every day to get an accurate chart. What i was saying is that many women find that the day before af arrives they have a temperature drop in the evening the day before, it just gives you more information , if you want it.
Toni Weshler' s book Taking Charge of Your Fertility is a good source of information and goes into charting in great detail as does her website.