Well there are two possible scenarios. Either you missed her Ovy or you didn't. Is she always staying on the warm side? When they are building they're are almost always off the heat source. Then there is bowl wrapping or just moving occasionally to the warm side to regulate things. Once they ovulate they stay on the heat. Judging from the picture, being pretty neatly coiled and going into shed, I am leaning towards you missed the ovy and this is prelay. One last thing you might try is to put the male with her. If she refuses to lock where she has always locked before, then again I would say she's already ovulated. Of course wait until she is done shedding first. Best of luck.