BBT help

Ca

Hi! This is my first month temping (I started a little late in my cycle due to not having a basal thermometer until then). Does it look like I may have ovulated at the beginning of the chart? Or do you think it just happened? I got a positive OPK around the time I started temping. My OPKs have been dark/positive up until the last two days. I have only been off BC a few months, which I think explains my wonky/long cycle. Thanks!