Implantation?

Not sure if this could be implantation bleeding, or just the start of my period. (TTC Newbie here) I took a test last Thursday and for a moment I really thought I saw a very faint second line start to appear but it disappeared. On Saturday, 1 day after AF was supposed to come, before I went to bed I saw this when I wiped but it was a little more pink. Now it’s Monday and this is still all that’s happening and I nearly had none yesterday. No bright red blood, and not enough to end up on my panties; just there when I wipe. I’ve been telling myself if I don’t get any red blood by Friday I will test again. Any thoughts??