In summary - the more cycles you do, the better your overall chance of being pregnant becomes. However, the chance for each individual cycle itself is still the same. It's just the more times you toss the coin, the more chances you have that it will actually one day land heads.
Mel, that is the point I was trying to make. For each FET you do, you increase your chances for the cycle (cycle being stim ET and FET/s). But the actual chance per FET is something in the order of 30%. In the end, stats are great but Disraeli also said they were crap. All you can do is keep rolling the dice and waiting for the 6