Need some other thoughts and opinions plz

So my last period started on September 10th on the 11th I had sex bc my I didn’t bleed that whole day for some reason the next day it continued. It ended on the 16th I had sex again on the 18th, I started new birth control pills on the 19th and then I threw up that morning and I continued to feel sick now yesterday I noticed that I had brown blood or some type of discharge and it’s still going on today. I also have been cramping for the last couple of days. My next period is in the next 14days and my feet in window is ending in two days as <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> is saying. I’m just wondering if it’s my new pills that’s making me nauseous and cramp and have this discharge or is it something else. Could I be pregnant or no? I added a pic of the blood / discharge and it was a bit or burgundy colored discharge in my underwear