Implantation?!?

Lyndsey

So see my chart. I was due af on 24th but on 20th I went to loo and bled very heavy clots in it dark red. So wore pad then the rest of the day barely anything. Next day just had bit of brown when wiped but pad clear and today just tinge of pink. Wats going on so confused. I don’t no when I ovulated as wasn’t really tracking this month. I had lot on.

Tested this morning bfn