Anyone in their TWW?

I’m almost done with my TWW! Just a few more days before my period comes. According to my OPK strips, I got my peak on 10/4 and then on 10/14, I felt a bit weird down there like cramping, slight heaviness, and minor back pain. I almost thought my period was coming. I kept checking my panty for possible stains or red/brown color when I was wiping! I did notice tiny amount of brown color but I had white colored thick discharge at the time and was taking a shit too. Not sure if it was mixed in from my pooping stains or if it’s implantation? It’s now 10/17 and still did not get my period yet. Based on glow, I’m suppose to get my period 10/22 but on premoms, it’s 10/19. Premom might be more accurate since I took pictures to analyze my OPKs. What do you guys think?