Time change and BBT?

Caitlin

Could the time change potentially affect bbt? Or a change in weather? My area is going through a major cold snap, and the clocks changed. My bbt came up low yesterday and this morning, but my Fitbit actually logged an increase in temperature. Can I still keep waiting until my period before I count myself out? I’m at 10DPO and my period isn’t due for another four days. Could it maybe be implantation?