HELP NOW PLEASE

IDK IF IM OVULATING!!

So I tan out of test 2 days ago and Amazon said my test would be here on time but then I got a notification that they would be 3 days late

So..I started tryin to keep up with bbt. My temp was a whole degree higher today maybe tmi but I feel wetter than usual and the consistancy has changed. I dont get cramps. I had sex the 15th and it's the night of the 16th should I do it tonight to. Any thoughts advice or ANYTHING positive to help is very much appreciated