Usually Omegas get their heat cycle every month, like us girls getting our periods. But Omegas don't bleed, they crave for the smell of an Alpha they truly love , or they put the heat supplementary so that they don't get a heat cycle during school or work.
Vincent had his heat cycle last month but still hasn't got his heat cycle this month. Vincent was having mid year exams the whole week. He was forced to come to school everyday this week because of Sebastian. Sebastian is like Vincent's older brother, he cares for him so much because Sebastian has no siblings nor Vincent. So both of them treat each other like siblings. Eventhough they both treat each other like brothers, Sebastian doesn't know that Vincent is an Omega.
On the exam day, Vincent left his house 2 hours before the exams started because his house is far away from school and he doesn't want to be late for the exam. When Vincent was walking down the school hallway, he felt pain
"Ouch, it hurts!", he squeaked.
Vincent thought it was cramps because he ran and didn't care so much about the pain. And also he thought that his heat cycle will only come next week....But he was WRONG!!!