Help IM DESPERATE

I’m on CD24, and AF is *supposed* to be here in 7 days. For the past 7 days I have been spotting (not enough for a pad, only when I wipe!!) and it’s been between light pink, some red, and brown discharge. Anyone know if this could be implantation bleeding? Why would I be spotting 7 days BEFORE af? Anyone experiencing the same thing? I just wanna be pregnant😩 I’ve also experienced nausea and intermittent pelvic pain the last few days as well as sore nipples. PLEASE HELP!