Im 14 years old and my period hasn't come yet and im still a virgin. i need help ?

im 14 and i dont remember when i had my last period this month. im still a virgin and ive never been with anybody and ive never had ually ever. why is my period off. is it possible you can miss you period for a month and it will come back. i just dont remember if i had my period at all this month i just dont know. ive been on vacation and having a blast. but is it true if your stressed alot and worry to much your period can be throwin off and not start for awhile ? idk i just need some answers.