Help! OPK + on strip, - on clear blue

Kristi • 35, 👶🏼 2years old, MMC at 12 weeks, 2 CP, 🌈 due 05/2020
My Easy@home opk looks positive to me, but the Clear Blue (smiley or no smiley- purple box kind) says negative. I took a second easy@home strip to double check and the result is the same. 
Has this happened to anyone? 
I'm so confused. I'm very irregular, this seems early for me to ovulate but would be extatic  to have a positive opk. We will bd just in case. 
I started taking Vitaman D pills today, that wouldn't affect the test would it? 
Advice please! 🙏🏻🙏🏻

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