PCOS and ovulation!

So, I have PCOS. Never had a positive ovulation test. Never known if i've ovulated. I took the top two tests on Saturday the 12th. They're cheapies, didn't think much of it. Took the middle test which is first response on Tuesday 15th, posted a poll and got close to 90% votes of yes, positive. Took the bottom photo today, Friday 18th just to see, ands it's clearly negative. So, did I actually ovulate?! Anyone with PCOS would know that this is much more exciting than normal!