How does my chart look?

Aysalah • Me,29👩🏽‍💼SO,26👨🏽‍💼TTC #1👶🏽💖💙#PCOS💔💛#TTCBabyD💖💙

My temps were flat at 1dpo-4dpo. Now I have a dip a 9dpo, should I worry about the dip?? While taking my temp, I had a night sweat.