Positive TB skin test

Hey everyone,
I have some concearns and would like some advice.
My TB skin test was positive. My chest x-ray was done today and will be read tomorrow. I am 25, married and have no children yet. I was hoping to start a family next year or maybe by the end of this year.
My concearns are about the meds. Obviously if my chest x-ray is positive, I will take the INH no questions asked. But, I have no symptoms. I have read that the meds are hard on your liver. If my CXR is negative I have been given the choice to take INH or not. What do you guys think I should do? Take the meds or not?
Thanks!