we went through this too when we first got engaged. it was more me i think, that was making us fight. it was just overwhelming to me, and i couldnt handle the stress of the wedding so i took it out on him. (poor sensitive joe) it was like a switch went off and i couldnt stand him. so weird. we originally were planning to get married this sept (we got engaged early dec so it would have been less than a year to plan) so after obvious tension between us we talked (a few times- it wasnt worked out over night) and decided that we should push it back and not take it so seriously but to have fun with it. so we are ok now, but i think its normal to go through tuff times. stress does a lot to people, and u dont even realize it.
someone earlier had asked if there was more to the story? only you knows that answer, so try to be honest about the relationship, and you just have to make sure this is the right thing for you two. but at the same time, you dont wana over analyze or read into it too much, b/c that when us women over react, lol. people have tuff times and again, thats normal. just as long as its a healthy relationship and you are truly happy with him, it will pass. i hope it's just a bump in the road and that you get through it. i dont know u guys personally but i do think this will pass. hope u feel better.