Hi, im new here and was hoping you can help me. My period was suppose to come on the 31st of aug but its been 13 days late. I am sexually active and there was ejaculations inside 5 days before my period. my period has always been regular but ever since i started work 2 mths ago its been haywire.. i dont know if its because of stress or am i pregnant. I tried to take alot of cooling stuffs to induce it but to no avail. I get cramps occassionally and all the symptoms ive gotten before i got my period. this is the first time ive been 13 days late.. please advise me.