Your chart looks great. GL!
I got all negatives this month with my O test. Luckily I didn't follow that and had sex on the days that I would normally O. Nor did I follow TCOYF chart and when it tells me I should be BD. Cause if I did this month I would have missed my O. I took a PG test this morning, 11DPO and got a faint positive.
Just keep charting the way you are and pay attention to your body and trust that. GL to you!!
just for future reference.... you CAN get positives a few days in a row because a positive means that you can ovulate in the next 24-48 hours. So you can get 2-3 positive tests before you actually ovulate depending on what time of day you take the tests :) So they look accurate to me!!! Good luck!!