Two diff BBT readings - help??

Mu

Hey guys,

So I have two different temperature readings from this morning and I’m not sure which one to go with.

My sleep from 5:30-6:30 was really rubbish so I’m thinking I should go with the 5:30 reading.

However, I heard you should always take your temp at the same time (usually I take it around 6:30)

And I also heard it should always be the lower temp?

Please help, thanks!