Rejected and Pregnant

I need help !!!

Hey guys sorry I haven't published in awhile. I know it probably sucks but I need help finding a book. Recently my library accidentally deleted everything and I had to start making a new library to read. There is one specifically that I want to find from my previous collection but I can't remember what it's called. If you guys could help me find the book that would be so great. It's about a girl who is a slave to this guy named Sin his names aka Sinnamon but it might be with a c but I'm not sure. She has many brothers and one of them is being threatened by Sin. They used to be friends but stuff happens between them. She goes to a private school woth her brothers. She's a very tom boyish character. I can't remember her name but I think it's something tom boyish. In the book she beats a guy up and stuff like that. Sin I believe is in a gang. I know my description isn't good but if you guys know the book I'm talking about please comment it or send me a message. Also yes I'm starting to write again but it will be slow updating so I apologize for that. If i have any typos in here I'm sorry about that guys. But just know I'm writing again for this book.