Missed Ovulation?

Taryn ⛵️

Hi! I began using OPK on CD10. The line was getting darker each day, but I just tested today (CD15) and now there is barely a line. Also, on CD10 I had a large dip in BBT, then a sharp increase on CD11, followed by 3 days of steady higher temps. This morning my BBT slightly increased again. Did I ovulate and just miss my surge while testing? I was so confused so we BD every other day to be safe. I’m new to TTC, so any guidance would be much appreciated 😊