I'm confused please help.

Tap pic to expand this is my whole cycle this month so far. I usual have a cycle length of 24 days and my most extreme differences are 21 and 27. So confused I thought I ovulated on cd8 but glo thinks nit till much later and it pushed my expected period out to 10th giving me a 31 day cycle. Iv never had that long of a cycle. Also now I think I'm crazy because I thought I experiences implantation on cd14 when I had bright pink spotting with fmu but no more and I cramped wierd all day then nothing. Now I'm gully of expecting AF 9/3 per my usual so iv tested and BFN. :( should I be discoraged or is there hope so confused.