[TOMT] Relatively new werewolf movie

The plot of the movie goes like a little girl who seems to be sick being raised by her so-called father who feeds her drugs and stuff sometimes to suppress her puberty, idk how but she gets away by her teen years and is found by a female police officer who takes her in, her puberty ain't suppressed anymore and she finally shows her werewolf traits, has sex with the officer's son in the forest and escapes into the mountains, last scene i remember is her in the high mountains in werewolf form pregnant with an aurora borealis in the night sky.