can anyone relation? *Implantation* TMI

I spotting pinkish/brownish for a week. Not on my undies, didn't need a panty liner just only when i wiped. I thought something was going wrong since i wasn't suppose to start AF until Monday 1/15 but i got a BFP and a few days ago and line progression is getting stronger. i do have an APT Tuesday 1/16 for a BETA test.

So, my question is, has anyone had implantation bleeding that long and only when wiping? I've seen a few stories were peopled have but i know it isn't common. Has this happened to anyone? Please help ease my mind and leave a comment! Thanks