unsure about symptoms.

So AF is due 1/19. I had some spotting last week and hoped that it was implantation bleeding, but now I'm spotting again, yesterday and today (only when I wipe). I'm also feeling really bloated today but I'm just not sure if its bc I'm gonna start soon. I don't usually get bloated before I start. And I don't want to test yet. Any advice? TIA.