Taking bbt

Sarah • Tue, Aug 27

I used to consistently take my temp each morning before getting out of bed, and if I don’t conceive this cycle (should know in about a week) I want to start again. My problem is that I wake up really early to feed my cats (like 5 am) and go back to sleep until around 7 or 8, should I take my temp when I get up at 5? Or when I get up later?