Clear blue skipt High only reading Low and Peak days

Adi
Im on clomid have been using clear blue fertility monitor for a few months and this month I am having only low and peak days no high days can some body tell me what might be the problem on day 14 monitor shows low fertility and on day 15 it shows peak for two days. no high blinky face it skips directly from low to peak. Day 16 in the morning I got Mittelschmerz. Is this a sign that I'm ovulating today on day 16 and I just didn't get the High? I tested with the first morning urine so could I have missed the High?