Just at a loss and confused. Implantation then AF?

Ash

So I woke up in the middle of the night Wednesday/Thursday covered in sweat (which never happens) and I went to the bathroom and wiped and has bright pink but by morning was light brown discharge. Then had brown discharge that day and the next but lightly and only when I wiped. Then it stopped. I kept thinking maybe this is implantation bleeding, but didn't want to get my hopes up. It fit all the signs though and normally when I start my period it is a little brown and then super heavy flow. Well now today I woke up super early and took a test and nothing, but my temp still hasn't gone down. There was 1 dip in my temp Wednesday but other than that has remained high since Ovulation. Then a few hours later today I wiped and AF had started. I am crushed and trying to be positive but just at a loss. I feel like my body has been tricking me and I really hoped this was my month. Guess not. Has anyone else had this?