BBT & OPK help

Ch

This is my 3rd cycle TTC. I have been tracking BBT for almost 2 months now and just started OPKs this cycle. I'm trying to understand how everything goes together.

Last month, I had a clear spike in BBT around the time Glow predicted my ovulation. This month, I haven't seen a spike, but my OPKs showed the LH surge. Does this mean my LH surged, but I didn't actually ovulate?