Should I test or not? I'm nervous!!

I have been trying to get pregnant for 7 months now to concieve my first child. Now I am nervous to take a pregnancy test because I do not want to be discouraged by another negative result. My cycle ranges from 26-32 days (with an average of 29 days). Today I am on day 29. My expected period is tomorrow. I hear that other woman obtain a negative result right around their expected period but then a positive a week or two after their missed period. So the question is should I test now or not?