temping/BBT experience - help please!

[S1987uk]

Hi,

I'm temping and have had high BBT of 98.1, 98, 98.2 in last 3 days.

I'm due on AF on Fri (and I'm like clockwork) so was expecting to see the dip today back to normal.

I usually test when I wake up about 7.30-8am.

However - I have some odd results today. I woke up at some point earlier this morn and took my temp - it was 97.8. Annoyingly I don't know the time, I think around 4-5am? I was only half awake and fell back to sleep pretty quick (didn't get up/remained lying down).

I then woke normally again at 7.30 and my temp was 98.3.
I'm guessing the first one is what I should assume - in which case unlikely pregnant, as it dropped. But I can't help thinking, what if I just woke normally at 7.30 and did this test - I'd be starting to get hopeful for sure.

(Note - I tried to do a First Response pregnancy test but it was defective/blank (no test line) and now can't do another until 'first urine' tomorrow.)

It's unlikely and I'm definitely obsessing as been trying a while... any thoughts on BBT times? And is 2 days pre-AF when others usually see the drop back to normal?

Thanks

I've had some cycles where my bbt is still high and have started my period and my temp drops on cd 2/3. This cycle, my temp has been dropping for days, and is very low today but I still haven't started my period. So it's pretty difficult to tell just by temps alone. If your temperature is still elevated at 18dpo, it's likely you are pregnant but before then, it's difficult to say.

If you're 2 days before af, a frer will likely show up, just test after a few hours hold.

I would count the 98.3 one to be honest. The 4am one is way too early (it would always be low then( and 98.3 is in line with your existing pattern. For peace of mind - perhaps try putting your 4am temp into a bbt temp adjuster?

I would however like to remind you that BBT is an utter troll in the LP and is in no way reliable as a bfp predictor.

What dpo are you today btw? It would also not be uncommon to have a big dip around 8dpo.