When should I test?

🎶🙃 • Pro Life, Animal Lover
I'm 9 DPO and currently have sore breasts (AF isn't due until the 1st of Oct), lower back pain, peeing frequently, lower left abdomen pinching, nausea after eating some certain things, and fatigue. Should I test today? Or the first day of my missed period? I'm SO anxious to test. 😔