Missed my period

I’ve been on birth control for about 3 years now and I’ve never missed a period. My last period was light and short and I’m on my period week for my pills (the last row of the pack) and I only have 1 more day until I start my new pack and still no period. No spotting or anything. I don’t have any pregnancy symptoms either. My boyfriend and I have unprotected sex rarely but he never finishes in me. I don’t know what to do? Should I be worried? Is it normal to skip a period? It’s just never happened before