Still a chance?

Chelsey
So I was to get my period yesterday took a test in the am it was negative. Well today when I wiped I had brown on the tp like I would normally have before a full blown period but my period will usually come a couple hours later after this brown. We have been trying to conceive for about a year and a half now so I'm hoping that this could be a sign of implantation and I could still get a positive test if my period still doesn't show in a couple days.