Need a second opinion

According to <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a>, today I’m expecting my cycle.

Yesterday I had some pink very very light pink discharge, I’ve experienced some symptoms like nausea, headache, breast sore( but days ago my breast was in a real pain, then it got better and now it hurts again), back pain.

I just need a second opinion before i go to buy a test, maybe it’s normal... I don’t know.