Implantation bleeding??

Okay, I’m new here... hi guys :)

So today I am 7 days past ovulation and 7 days until my period is roughly due. So today when I wiped I had light/dark brown discharge. In my underwater it looked like a small amount of normal discharge. This brown like discharged stayed around for just a few bathroom visits. It honestly made me think I had diarrhea and wasn’t aware. (TMI sorry) Now everything seems to be back to normal. I have had “old blood” before but it was much darker and seemed to stay around longer. I have no other symptoms so I was curious to anyone else’s experiences with this!? Thanks in advance!