First time BBT

Sarah-Jane • TTC 16 months💏We did it🤰🏽Sophie born 10/7/18💕

After a year TTC decided to take taking my BBT (doc has already confirmed I'm ovulating) but I just want to see if this is true! My first temp on day 7 was 36.74, I was reading up and temp before you O is 36.1 to 36.4 then rises after you ovulate? Is this temp I've just taken ok or is it a bit on the high side? I usually ovulate on day 12-14 each cycle