It’s day 18 of my cycle and I felt like I was ovulating couple days ago with a bit pain and the discharge, but however today I go to the bathroom and I have a dark brown discharge that soaked through my underwear and onto my leggings, this also happened last month but never before and I tried googling but it always says I am ovulating but the signs really don’t match up to it, does anyone else have more experience or know what it could be? I’m totally clueless