Totally confused

Justine

This was in Friday during the day.

This was Friday night.

Saturday during the day.

This got my confused. As it started at 15dpo and it's not like my normal cycle. I know with both my kids I got what I call a last period as I bleed for like a day and a half. But it's just weird as it looks brown on pad but slim and light red when I wipe. Please help could this be implantation bleeding. Or just a weird period