I need opk help! Please don't just read & skip

Lauren • Expecting baby #1 💙💗 February 2016
Ok...this month has been hell trying to track ovulation. All my apps said 1/28 "O" day, but no positive opk until today 1/29. We're going to Bd Tonight tomorrow and Saturday. My question is about the picture I posted. Top 2 were today- clearly positive. These were both taken about 5:30pm. The third one was just now about 9:00pm- clearly negative. I'm TOTALLLLY confused