Positive ovulation test then negative

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Hi ladies I tested this morning when I woke up with a clearblue digital ovulation test and got a smiley face to my surprise because I wasn't supposed to ovulate for another week because my cycles are usually 33 days long. And I'm only on cd 12. The test lines looked a little messed up so I waited another hour tested and then waited another 2 hours and tested again and the line looks really light. So should I trust the smiley face or not?