Clearblue Easy Ov. tests

Stephanie • 💕 34, nurse, wife, mom! TTC #2! 💖
According to glow my cycles are 32 days vs 28..: first time using ovulation testing.. Was wondering if anyone else has 32 day cycles and could give me information on the best cycle day to start testing so I'm not wasting these costly little sticks... lol also with it being digital is it wise to just ignore the lines on the insert??