Cramping before Peak

Erika

CD 14 & 15 I was having massive watery discharge. Today CD 16 I’m having KILLER cramps. Worse than period cramps. They are paralyzing. Anyway, I started OPK testing early because of those symptoms, although according to my cycle, it’s a few days early to be getting all these symptoms. I also just started temping. (Not sure when to expect that temp drop). Anyway, is it “normal” to have all these symptoms before even getting a peak? I’m working out of town and won’t be home til the weekend. I’m afraid I might miss my window. Thought I had more days. 🥺🥺