Missed period on birth control

Leah

So, I’m new to birth control, currently two months in and I’m at the end of my pack which means I should be getting my period now. I havnt gotten it, I’ve taken 2/7 green pills which should be my period and still havnt had it. I always use protection and take my pill on time however I did have unprotected sex once but he didn’t finish inside me.

Should I be worried?