I've been taking Microgestin Fe 1/20 for over 2 years. Last month, my period didn't come during the brown pills, which has never happened before. I hadn't had sex, so I knew I couldn't be pregnant. So I haven't been taking the pills for the last 3 weeks (didn't expect to be having any sex and I wanted to see if my period would come-- it didn't, by the way) and then I had completely unexpected unprotected sex last night. I'm aware it doesn't really matter, but he did not finish inside me. I took Plan B 2 hours later, but I'm freaking out. Do I have high chance of being pregnant? Is there anything else I can do?