Implantation or period

I’m sorry to keep asking this question but each day it’s different.

So over the past 2 days I’ve had this light colored discharge and very slight cramping. The first picture is the first discharge, second is around night time of the second day and then the last picture is today. So confused. And itsonly a little bit each time. Never a ton, not consistent maybe like 2 times a day, not even. Any idea? Got a very very very faint positive 2 days ago.. AF was due today. Was expecting this to be my period but then the discharge stopped.

First day

Second day

Morning after second day: