Questions .

Is it normal to wake up around 430 in the morning, take temp and it shows 97.4, then check phone and you notice it's too early , so you go back to sleep and retest at 630 , your usual time and the bbt raised to 97.9 . I'm on dpo 12 and havent dropped below the cover line except for 1 day (but it gradually went down over the span of 3 days so I dont think it was implantation drop)