Short ovulation window?


I have been taking Clear blue advanced ovulation tests like crazy last three days. Sticks have been showing no rise in LH o estrogen, then this afternoon I'm at peak. Sticks might be outta order a bit, but not much. Glow predicts ovulation in 2 days today and increased discharge so I knew it was coming. Anyone else skip high days, go rt to peak? Do you feel you have a shorter ovulation window? Been trying to get pregnant for 2.5 yrs, wondering if this could be causing the difficulty getting pregnant?