I tested on my 6dpo about 6 days ago and I got a very very faint line.

My breasts has been unusually heavy and painful and I have been cramping for like 6 days now with daily bloating.

I occasionally get fever chills, fatigue and sometimes headache.

AF is due today but earlier yesterday, I noticed a yellowish creamy discharge and about 4 hours later I got a pinkish red discharge. Later in the evening it turned brownish and I changed the liner but uptill this morning it was just an indent or say a stain.

What could it be?

AF knocking or implantation bleeding? ☹️☹️