Bfp? evap? Help!

Katie • Mommy to an amazing 4 year old! TTC #2
AF due tomorrow. Been having brown discharge/spotting when wiping only. Last night wore a tampon to bed just in case, and has some brown spotting again with some red on just the tip. Didn't fill 1/4 of the tampon even. Haven had sore boobs/moody/crampy for a week and a half now but all are pms symptoms too. What does everyone think??