Help!!!

So about 2 weeks ago I had very light spotting I put a tampon In and went about my day got home took it out and nothing on it.. have not been cramping or. Oo s sore like they usually do before my period.. my CMA has been dry all month a d I have been very gassy and not having any period symptoms.. what is going on should I test or wait. My period is due on the 17th..