delayed period, possible pregnancy

if anyone could help me id b very much appreciated

last time i had a period was the 26th of january..
but..
me & my friend had sex a day or 2 right before i was gonna start
in february..we did it at like 3am or close to it on the 25th of february..& still yet i havent started..it was unprotected & he said he didnt ejaculate nor was he close...we didnt do it but for only like 5 minutes

everytime i have sex im delayed on my period for like a week or a lil less...im only 16 & scared to death...i have been thru this problem before with my mom 2 times...& i turned out to b NOT pregnant...i dont know if i can handle the disappoint from my mom again or not....but this time it really may be serious


do u think that since i done it so close to my period it could b delayed longer than expected or wat?


has anyone had this problem before? if so please respond back...PLEASE!