OPKs with PCOS

So I have PCOS and never really relied on ovulation tests because I’ve been told they don’t work for those of us with PCOS! however I’ve been trying this time with them ttc baby #3 and so far (only cycle day 10) I’ve been getting low LH that’s gradually getting darker, does this mean that the tests are working for me?

Most ladies I’ve seen using them with PCOS have ones that are continuously darker so I assume that’s why it doesn’t normally work for those with PCOS.. but if my LH is low (light line) then gets darker does this mean they will work for me or am I just wasting my time using them?