Demons VS Vampires Over The Angel

Nicole only wanted a normal life. She always thought she had one.
Well she was wrong. She's an angel. Has an arranged marriage to the person she hates, and gets pregnant at an early age.
She starts to find out what she is when she moves and meets this boy named Jake Reight. She doesn't know that he's a vampire and that he will be the father of her child.
Nikki has to get married to Trevor King. Her best friend's brother, her enemy, and the school's playboy. She finds out that he too had many secrets like Jake..
Then her parents want another daughter suddenly, So in comes Kiera. She would do anything for Nikki. Even though Kiera was an adopted 17 year old with the same due date as Nikki, they grow close. Close enough for DEMONS VS VAMPIRE OVER THE ANGEL :)