missing period???

my period is a week late. i know i’m not pregnant because if i was, the baby would have been born three months ago. not sexually active right now. i have been in college and just finished an extremely stress inducing class. i have been overworking myself so hard that i’ve thrown up. all because i want to keep my 4.0. is it the stress? because i am not pregnant. i even took a test even though i haven’t had any sex and it’s negative.

confused hozier 4 u