TTc , early sighns?

Hope
I had sex for days of my fertile window and before . Also 3 days after window . My other app is telling me to take a test in six days. My cm is school glue like . My lower back hurts, I was constipated for a couple days after and now im gassy. I've been taking prenatal vitamins since first firtile day. What the chances of me being pregnant & when's the best time to test?