I’m confused

My temperature went from 97.6, 97.7, 97.9, 98.0 , 97.9 now to 97.7. Does this mean I will be getting my period since my temperature dropped back down so much? Could it have anything to do with being by a fan? Idk. I’ve been trying to get pregnant and I read if it dropped then your gonna start your period and my period is suppose to start on the 8th of next month. Can someone please help me at