Can any give me some guidance?

Ovulated on the 23rd.

Period predicted to start on the 6th.

Had light blood the 3-7 (bright red/pink in color only seen on paper. Didnt even have to wear a liner. No clots.

Wouldn't see blood every time I went.

Brown blood on the 8th for two bathroom trips.

My "normal" is 5-7 days always on time if anything a day late.

Heavy on days 2-4. Bleeding through pad or tampon. Bright red to dark red with some clotting.

Could this be implantation or just a light period?

Now 7 days late for my "normal" period but still getting negative pregnancy test.

Hate not knowing what's going on.