College affects on periods

Hi, I'm 19 years old and I just recently finished my first year of college and moved back home. Can that affect when I receive my period? I'm 10 days late, and I don't even have the symptoms of my period. I recently had protected sex, but he pulled out before cumming in the condom. This is my first period I'm supposed to have at home, coming after finals and college so could the change in stress affect my period?