Signs

Two and half weeks ago i spotted a little bit, I only wore pads at night time so there wasn’t a mess in my panties but during the day i only had blood when wiping. My period is late and the past 3 or 4 days I’ve been nauseous and throwing up and today my boyfriend and I noticed that my areolas look like bullseyes or targets? Can someone please give me some insight on the bullseye thing??

Update: Glow says period was due the 6th of this month, took a test and negative. What is going and on? My areolas are getting darker and I'm having veins pop out all over my boobs??