Yeah... you generally want to start temping at the beginning of a cycle... not the middle of one, but No Worries... You're here now!!

to the Wonderful World of Charting!!
From the sound of your temps, it sounds quite possibly that you may be experiencing a decline in temps as your body gets ready to O.
Since you said AF was about 2 weeks ago... the time is about right for O.
If you are TTC... keep BD'ing until you've got 3 consecutive high temps to confirm O.
If you haven't already, you'll want to look into setting up a Fertility Friend account to track and chart out all of your temps. That will make "seeing" your temps and patterns much easier... and it also makes it easier for us to answer your questions!
Best of Luck & Baby