TTC.... When should I test?

Edlyn • Feeling peachy!
Not sure what next steps to take. I have Glow n Ptracker both with 30 day cycle n 5 length period days. 10 days ago I was spotting which never happens "maybe implantation"?? Who knows? Now my question.... How many days should I wait to test? 
Don't want to get my hopes up. 😫