My friend had her last period on september 2nd and ended september 8th. She had sex on september 23rd and on the 30th. Now she hasn't gotten her period her breasts are swollen and they hurt when they touch them, her lower abdomenal hurts and she's thrown up, also she get's this ugly feeling when she smells something like certain foods. So you think that she is pergnant and when do you think her period should of began this month.