Should I go to a Women's Shelter?

My husband raped me two weeks ago, it wasn't violent or super forceful but I'm really struggling with it. I have nightmares about him every night now and I don't want him to touch me or be near me. I feel like I need to just get away for awhile and figure out everything and maybe get some insight/advice from someone. 
I don't want to be selfish though and take away a place from someone who really needs it. I know my case isn't that bad and I should probably just get over it but I'm feeling really lost. 
What should i do?