my last menstruation was july 12 and until now it hasn't come. my BF rubbed his penis over my vagina last july 30 but he was sure that he did not ejaculated. i am worried right now coz my menstruation still hasn't come. i am thinking that maybe i am just delayed becoz of the anxiety and stress that i am experiencing these past few days. i could also feel that my breasts are tender and right now i have a flu.. could these be symptoms of pregnancy or just PMS? help pls..thanks