7dpo??????

My AF is due in 9 days, so I am 7dpo today!, since 3/4dpo i had very slight cramping and sensitive nipples and felt slightly nauseous, however since 5dpo the cramps and nausea have become more noticeable!. Today at the bottom of my back, I had feelings of cramping and also my pelvic region like my AF was coming, usually if I have those pains, then AF shows up within a few hours, however I have nothing but creamy sticky cm, and also today I felt that sick I was nearly going to throw up, I also have noticed my temp is higher than usually around 37.2c, I’ve also had the runs😳 as well, could this be a sign?????