I had sex with no condom and Im not taking care of myself. This happend on 9/5/09 and on 9/8/09 I had my period yet I normally get my period like around the 16th of every month. So I got my period early. After that, I've been getting heartburns, something I've never had before. Also I've been craving pancakes. A food I don't really care for and getting headaches. Does that mean Im pregnant?