Confused and I really need someone to talk to.

I just feel so lonely lately. I've been with my boyfriend for a little over a year but lately it's all arguing. Arguing and bickering over stuff that doesn't matter. I'm constantly "watching my back" and always asking myself "If I do this or say this, will he be angry and start an argument?"

It's so hard because I love him so much. We even talked about having kids and trying. After we talked about that and started trying, it's been nothing but arguments.

I don't know what to do. I find myself crying whenever he's gone because it's all I think about when he is at work and I am not doing something to get it off my mind.

Any advice on how to bring it up to him or just any advice would be great.