LH too low?

This is my first month testing my LH. It doesn’t look like my T/C ratio went above 1, which I’ve read is the target for ovulation. Did I just miss testing during my peak or are my levels too low?

I continued to test on CD 18 after the 5p test where I seamed to peak and the numbers only decreased so I didn’t capture the tests. I have usually pretty average cycles at 28-29 days, but it has been fluctuating more recently due to a new medication that does impact my cycle with spotting, cycle length etc, particularly when I have changed dosage. Should I be concerned?