I need to HARVEST but dont wanna cut her from stem?

Hi can you tell me why you flushed? How you did it? and Why it ineeds to be done. I am harvseting my first plant and learning

correct me if im wrong guys, but wouldn't revegging the same plant over again reduce the potency of the nuggets next time he flowers?? i think thats true - anyways, why dont you just take cuttings from your gal once you harvest in a few weeks, and grow again?? that way, you know you gotchu a female, plus it wont take away from the potency of the plant...is that right vets??