When to test

We are both getting very anxious to see if AF will make her arrival this month. (Supposed to start the day after tomorrow) I have never had cramps, sore breasts, nauseousness, or any other symptoms before AF and have had all for the past week or so. Light cramping, very sore breasts, getting nauseous especially after eating, have been constipated (when I NEVER have trouble in that department, I know tmi) and my emotions have been crazy! Even just shopping for my soon to be step daughter, I find her a cute Christmas present and I get so overwhelmed and happy I cry! And starting the night before last, more often than not when I sneeze or cough I pee my pants. I have taken a few tests and they all come up negative. Is it too early to test? Should something be showing up by now, or should I wait?