Spotting... help?

Alaya • 23 and 28, ttc #1

Hey chica's.

I had very light, very pale pink spotting yesterday for about an hour. Then it stopped. Today, i have had slightly heavier spotting, almost red but not quite. AF is not due till friday, so another 4 days, could this be implantation bleeding? And if so, should i wait to test or take one soon? Im sick of only seeing one line, its getting me down