Husband leaving for work

So my husband is in the roofing industry (newly) and has to travel. This is the first time he's been asked to go away for it and they would be paying for his hotel but he has to share a room. I was understanding that I would be allowed to follow (not getting that they pay for a room for him to share). I am deathly afraid of staying home alone through nights because after my rape attack I wake up in the middle of the night and look for the man that did it because I always feel like he's around me. My husband is always there to wrap his arms around me and tell me I'm okay which calms me down. My question is, should I learn to tough this out or pay for an extra room at a cheap hotel. (I know I sound like a complete baby, but the thought of waking up and feeling the presence of someone who isn't actually there and no one to keep me "safe" is terrifying to me) I would like to add I'm also 5 months pregnant.
Edit: I do live in an apartment with no pets allowed and I also do see someone for what I've gone through. I get very bad night terrors about what had happened and was put on medicine for it but can't take it now that I'm pregnant and the dreams are more vivid. I do have family around and will talk to them but the job would take a couple of weeks. He's getting paid extra to leave home and a cheap hotel wouldn't be a problem, I'm just really indecisive about my options at the moment.