Vibrators?

So I keep questioning whether I should get a vibrator. During the week, I don't get to see my boyfriend because we live in different towns. Along with this, I have long periods and my boyfriend doesn't like to have sex when I'm on my period. I haven't gotten one yet because I feel a little guilty about it, and I also don't want it to interfere with the sexual connection I have with my boyfriend. If I get one, will it interfere with the intimacy I have with my boyfriend, or enhance it?