Hi, this is my first month tracking temperature so I appreciate any input!

I think I had the temp increase after ovulation, but every day since my temp has been steadily decreasing. Does this look like normal variation or does it mean something different?

(A note on cycle days 10-12 - I slept really well those days so the temps were taken almost 2 hours later than all the others, at around 7am, all other temps on my chart are from around 5am when I first woke up)