Oh boy this is really confusing.... pls help

K

Yesterday 6dpo I was experiencing spotting(see picture below) accompanied by cramping which lasted a couple of hours then stopped. My temps yesterday were 98.1... fast forward to this morning (7dpo) my temps took a dip to 97.7 . Can someone pls explain what is going on? AF isn’t due until 22nd. Although my temps dropped they didn’t drop below the coverline if that means anything. I am also attaching today’s chart for your review. Please help this newbie out(first month charting) Thanks!😏

Updated this 👇🏽this is yesterday’s chart Fertility Friends