Soursop, that’s why bbting is stressful because you MUST wake up same time to measure hahha. In this case I suggest you start all over again. Disregard all the past temps.
For me, my temp is different at 5am and 7am. And I believe most people are like that also. That’s why it’s most important they must be read same time (plus minus 15mins). You can decide what time is best for you to read. Everyone’s typical waking time is different. Once that’s set, you need to stick to it.
So to be frank, if you think you cant stick to the timing, then dont’t need to bbt !