TTC month #4 did I ovulate?

I have been relying more on my bbt this month as the last 4 months TTC I have only gotten 1 positive opk, which was last month, and it seemed to line up with my temp. Does this look like ovulation on day 16/17? Does anyone else have issues wh OPKs? I thought at first I just wasn't ovulating!!! I don't usually have too much EWCM either...anyone else in this boat? Any advice would be appreciated! Hoping for some good news this month!!