Birth control

So I started birth control last Sunday, I took my eight pill today , and I have taken all of them on time. I had protected sex early today, but <a href="https://play.google.com/store/apps/details?id=com.glow.android.eve">eve</a> is saying that I have a high risk of pregnancy. So should I be worried because this is my fertile window If the birth control is not effective yet ? Or should I relax ?...