Slightly Panicing

Nykki • 19, Awesome
I completely understand that the "I think I'm pregnant" // "Could I be pregnant ?!?" Post are sooooo annoying. HOWEVER ! Ihave never ever NEVER been late in my life and my cycle is now.three days late... I have ALL the sympotoms of a cycle; bloating, slight cramping, fatigue, irritability, etc.. but there is no period .... I have alreafy decided that I am going to take a test, but my question is shpuld I wait until I have completely missed my period to take a test or should I take one ASAP, ??