Question 9dpo

Hello all I'm 9dpo I haven't experienced any signs of implantation  but I've had a lot of creamy lotion like CM my cervix is High and harder to reach, no sore breast, but been waiting a lot more and needing to go toilet a lot more than usual, also I have no energy any more all I want to do is sleep I've  had slight cramps  .  My bbt chart is confusing to me, my AF is due the 4/7 when would be a good time to test ? Should I even test if I've had no sign of implantation . ​