Hi..I hav a question...its now July 14th and haven't had my period since June 8th, and had unprotected sex on June 27th...I took a pregnancy test but was negative...im sleepy all the time, I have a yeast infection, i gained sum weight, wiith no cravings but an increased appetite an im having cramps but still no period yet I have normal 28 day cycles and im not on birth control ...cud I b pregnant?