Does anyone see a line starting?

18dpo, pink light spotting started day before af due 14dpo, red light spotting 15dpo, and brown barely there spotting 16dpo. Digital test yesterday 17dpo gave me a negative. Been really sick since Saturday, boobs sensitive and tender for past week and a half, light cramps during spotting days, uterus feels heavy....having a lot of symptoms and feel pregnant but keep getting bfn's