Late period am I pregnant?

Oroni • Live life with honesty :) Follower of Christ 🙌🏻
So I'm four days late on my period.And when I had my last period , on the 3rd day of my period my boyfriend came in me but I did not do anything about it since I was on period.So last month on the 11th he came in me again but I took a birth control pill.should I be worried?