Please help🙏🙏 please don't ignore

Ok so i have PCOS and Im letting you know so that you can understand why this is so strange for me. I'm NEVER early on a period EVER. Its normally at least 45ish days or I miss it and VERY heavy.

I never really know when my period is due because the days change.

My last period was August 18th-21st.

On September 19th i went to wee and when I wiped it was very light pink only on the tissue. I went again and it was the same then i went again and i had a tiny "bit" in the toilet and tiny "bit" on the tissue, then nothing. August 20th i had it again only when I wiped nothing in the toilet. I put a pad on just incase but ended up taking it off because i haven't needed to wear it. August 21st i wiped and it was a really small amount but stringy/slimy, again nothing in the toilet. Then it went back to just a smear of pink when I wiped. Then that night I had a little in my underwear then nothing. This morning August 22nd I had nothing then i had light pink once on tissue when I had a wee around 10am, nothing in the toilet.

What is going on ive never had this before, do I have a chance of it being implantation bleeding?

Any advice/knowledge is welcomed ❤