This is my chart. I have no clue when I ovulated really. Its been a strange cycle.
Without temps from the beginning of your cycle, it's too hard to tell. You need to have those Pre-O temps to help establish your follicular phase temp because then you can see when the shift is for when you Ovulated. WIthout those, it's hard to establish what the shift was.
For example: if your temps at teh beginning were all below or around the 35.5 range, then it's possible you had a surge at CD12, and O on CD13, and then had a "slow rise temp" (happens sometimes). However, if those other temps were higher, it's possible you O on CD15 and then had a slow rise, small dip and then rise again. Also possible. Without any of that info, I can't be sure.
Why did you choose to discard the temps on CD14 and Cd15?
Either way, if your temp stays up as high as it is, or close to it, for another day or two I can honestly say you are probably in your TWW, but how far I can't be sure. Especially because I don't know if the spike at CD12 was a fluke, or an estrogen surge, or "normal" (because I need to see the pre- temps).
Next cycle, if no BFP obviously, then temp the whole cycle and you'll get a much clearer picture.