TMI PIC/ IMPLANTATION OR AF !!! 😩

So I posted yesterday about AF being due on the 28th. A little bit after I posted on here, I went to the bathroom and seen some brown stuff when I wiped. So now this morning I went pee and its still there, but very very light. I even tried pushing to see if anything else would come out. Yesterday I was 10 DPO and today I'm 11 DPO. Am I experiencing implantation or is AF soon to show ??? Thoughts please !!