Clear blue fertility and wondfo giving different ovulation??

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Three days ago I got my solid smiley face on clear blue fertility monitor meaning peak fertility and ovulation in 12-24 hours. I have also been testing with wondfo ovulation strips and I seem to be getting my peak today. Ah. I’m worried we missed it. We BDd on the 28th so 5 days ago. 😢 we wanted to try the shettles method to sway for a girl since we have boys. We didn’t BD once I saw the smiley. Anyone notice clear blue giving an earlier ovulation??