Ovulation Testing - No estrogen surge before the LH surge?

Hello beautiful glow ladies! I’ve been using ClearBlue Easy Advanced ovulation Kits off and on for about a year now and the last two months in a row, I had no high fertility for estrogen before I get a peak fertility for the LH surge. I’m only getting peak fertility, no flashing smiles before.

Any ideas what’s going on here or anyone else have this happen to you? I’m 39, TTC actively for about a year now. I’m so confused 🤷🏼‍♀️! It used to show high fertility before going to peak!

Thanks everyone and happiest of happy New Years. May all our dreams and especially our baby dreams come true! 🥳💫🌟