Xulane, am I pregnant

Hi, I have been on xulane for about two and a half years now. On my patch free week I didn’t wear a patch and had my period regularly. I was on my period December 2nd but don’t remember exactly what day I started it. After my period I never put on another birth control patch. I have had unprotected sex and have been ejaculated in. It is now over a month later and im more than positive that I am late for my period. Should I freak out? Am I pregnant? Or is it not using The patch that’s making my period not come. Please help