You will lose some nearly 100% of the time, but you should not lose all anytime. Now if you weigh more post cycle than you did pre, you need to eat more than previously to maintain bodyweight.
Some people also claim they get sick, they go on vacation, whatever. Once in awhile you spot people that have done 5 cycles and still weigh 170 because of this, that, the other, and anything else you can think of.