Okay so i was supposed to start my period on the 21 of august i have my period the sa me time every month i was à week late and sent to the doctor thst said i had à major uti and i Took all m'y médications ànd i gavé been nausiated everyday since then and i still gavent started my period how long coups it tale me to start m'y period seeing thst i didnt have one last month