My period is late!

I'm an overwhelmed college student who's in desperate need of help or advice. I started taking Ortho Micronor back in September and I got my period on time. The end of my second pack of micronor (October), I switched to Tri Cyclen Lo on a Sunday. Me and my boyfriend are sexually active but he never finishes inside of me and we don't really use the pull out methode. We stop before he gets close. Anyhow, I'm almost done my Tri Cylen Lo pack and my period is 14 days late. Help me please, I know that I had brown discharge in October too. I'm so worried that I'm starting to feel sick and paranoid.