How early should I test?

Madison • Mommy of an angel baby. Aiden Rayne Wood 100312 ? in love with Evan Dalton 032813 ? actively trying to create our miracle baby! ?
I am currently at 8 days since my last ovulation day. Af is due to arrive in 5 days according to Glow. I'm so tempted to test. I have a clear blue digital pregnancy test and bfp pregnancy tests. Should I wait? Or should i go for it?? Anxiously awaiting a BFP since February 2014!