I'm definitely no expert, but if you're deciding that you haven't ovulated based on your charts alone, I don't think that's enough. FF is probably unable to tell when you Od because you didn't take your temperature every day, there are some pretty big gaps. The temperatures that were recorded do look erratic, but that doesn't mean you aren't Oing. Lots of things can give erratic temperatures, like breathing with your mouth open or using a fan or an extra blanket on some days. I'd say try again with the charting next month and take your temperature every day at the same time, that should give you a much better idea of what's happening. That said, if you can afford fertility testing and can find a doctor, it might still be worth it just to put your mind at ease. Good luck!! I hope you get your questions answered either way.