missed ovulation??

Bethanie • 🌈 LPC 04/06/18 🌈120120
Took and opk test on Sunday and the lines were almost as dark as the control line. On Sunday I was only on CD 12. Just took one this morning and there's barely a line there. Did I miss the ovulation? My cycle is all messed up from my miscarriage in April. Yesterday I also had some ewcm and some sticky cm. 
My gyno told me that the best time to have sex is between cd 12-16. I'm new at this so I'm kinda of confused 😔