Temp is 99.2 at 11dpo but had a pink water spotting only on tp. -neg HPT test?

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http://www.fertilityfriend.com/home/2222cc My chart is above. I dont feel pregnant at all. No CM, bb's soreness start to ease off. I still have the crampiness around lower pelvic region. If you spot, is your Temp supposed to go down that day? mine still high 99.2 did spotting at 8dpo, nothing then until now 11dpo in the morning which is pink watery spotting only when wipe. Nothing in the pad allday. It is now 12 midnight going to 12dpo no spotting in my undies. What is going on? Do u think this could be implantation spotting? If it is do u think it is too late?