Ovulation testing

shannon
So this our first time TTC with #1. I don't fully understand how ovulation tests work. I usually take one in the morning but don't always remember to take a photo. I figured these were all negative for LH but how much darker than this do they get. I see some women it can stay light like this or get REALLY dark. Any advice to look for when I get close to ovulation such as CM as well? I still don't have a down pact cycle as I recently got off BCP last month. Last time I got off the pill my cycle was really weird. I would see AF once a month and then wouldn't see her again for another 1.5 months.