Last time I saw my period was October 28, 2011. That was the first day of my period that month. I haven't had my period since then. I had to travel to México due to some problems. I flew on the 22nd of November which is usually the week I get my period. I didn't had it. I thought it was because I was homesick and because I had to travel. I had sex with the guy that was my boyfriend weeks before. I missed my period twice in a row which has never happened before. I don't feel nausea, or any other pregnancy simptoms. Could it be that I am pregnant? Please help! I don't know much of this kind of things and I'm nervous.