Nothing to worry about the interview, if you was honest with your husband and tolld him everything about your life,family, friends, job ect,and if he loves you than the interview will be a pice of cake.
Yesterday I had the interview and everything was OK.
I have read here in the forum that many people just to blame the officers that they are ruing peoples life by refusing the visas but I can say that they are so wrong.
If someone gat refused you must be shure that in that relationship something is wrong.
Sorry but this is my opinion.
All the best.