period is 8 days late with no signs of it coming and all my pregnancy tests are negative??

Kimberly
Am I testing too early? Is my period just late?    I have had two different days of some brown discharge. I thought it was my period coming but it wasn't.  Not even enough to add a pad or a tampon.  A few wipes was enough.   My husband and I have been trying for a little over a year. Should I wait another week ?