How do I know I should test?

Last month 11/14 I was 9 days late and when I had my period it was hardly anything and was one day .  Now this month 12/14 I had pink spotting starting the morning of the 1st -3rd when I wiped but just the one time each morning. And nothing for the rest of each day.I am having so slight cramping and as of yesterday sore breasts and insanely emotional .  Should I test or wait a little longer?