Clear blue advance fertility monitor

This is my 2nd month using the CBFM it’s been 18 days since my last period and the machine is saying Low for the last 10 days

Last month I had low high and peak on time and this month still not had a high!

Has this happened to anyone else and got a later high / peak ?

I’ve been getting my periods on time so can I by any chance not be ovulated this month?