Is this normal?

This is my first month trying to track ovulation I usually have a 25 day cycle 6 days AF so since I was new I started the day after bleeding always ho my urine atleast 2 hrs prior never fmu I work night shift so I’ve been testing at all goes since I’m not necessarily awake when normal times are I guess my question is is it normal for the line to not get progressively darker because it has been fluctuating does that mean I may not ovulate? Missed it? All my apps say I should ovulate CD12? Personal experience?