Ovulation bbt spike but no positive opk??

Chelsea • Mom to a beautiful little boy. 4.28.16 Jace Ryan 👶🏼😍 8lb 12oz 21.5 inches long Second time mom to another gorgeous boy 2.15.18 Cade Jax 9lb 2oz 21.5 inches long 👨‍👩‍👦‍👦❤️
So I have been testing since cycle day 10. Twice a day too as to not miss ovulation. I am on clomid. I ovulated 2nd cycle not 1st. I'm on cycle 3. Yesterday I got my bbt spike but no positive opk. Could I have still ovulated or am I out. I also was spotting this morning. 

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