Wait or Retake?

My period isn't due for another two days but I was bored. I've been TTC all year but lately my husband and I decided to just enjoy the sex and let it happen. No OPK Strips. No monitoring my Basal Temp. Nothing! But today I was bored. I do see a faint line on my HCG strip. So my beautiful ladies, should I wait the remainder of the week or retake a another test?