Confused...

Victoria

I am so confused. I was supposed to start Monday. Had two faint positives. Went to get it confirmed yesterday and it was negative. I’m 15dpo. Temp is still elevated and no sign of af. Even having some discharge. Has anybody been pregnant and kept getting negatives? I’m just so confused by this. My periods are regular, have been for over a year and a half and my temp never stays elevated like this.