I'm trying to find a movie that I watched with my older sister and mom when I was really little. I remember that there was this group of girls, and they were all friends, I don't remember how many exactly but a new girl came to the school and they became her friend. I only remember two scenes, one of them was when she went over to one of her friends house and that girl had a kid and a boyfriend and the guy tried to get her to do something with him but she wouldn't but somehow the other girl found out about it and thought that her friend was trying to get with her boyfriend... Then the other scene was when the group of girls took the new girl out to the woods and killed her, because they were jealous. I don't remember what they did to her except I know they beat her and then one of them cut her hair off because she had really long hair. I'm sorry if I didn't explain very well, its just all I can remember and I really want to watch it so if anyone has any idea what I'm talking about please let me know. Thanks! :)

I remember watching it on TV with my sisters and Mom too...

A Killer Among Friends (TV 1992) - IMDb
Based on a true story. Jenny Monroe is the perfect daughter. One day she goes out with her friends and does not return. Later, the police arrive to tell her mother she has been found dead. Jean Monroe sets about a furious work through of grief in determination to find her daughters killer. The horrifying truth about Jennys final moments are shocking and disturbing.

I found it right after I posted this. She's actually not a new girl, they had been friends since they were really little, I guess I was too young to remember that. Thank you for the help. :)