Brown in CM 🤔⁉️ HELP

Niki
So I noticed that when I wiped today there was brown in my CM. Hubby and I are TTC so that worries me a bit 😰 My period is supposed to start on 5 days(fingers crossed it doesn't 👶🏽) I've never had this happen this far from my projected period. Would this be implantation bleeding @ 8dpo? 
Did this happen to any other women who conceived? PLEASE HELP.