Of our 42, 26 fert, and I actually can't remember how many there were at 3 days now. I might have posted it here somewhere... Anyway, as of this morning, day 5, we had 16 of which we transferred 2. They are keeping the other 14 incubating until tomorrow, and will freeze whatever is still going strong. I just thought you might want to hear the results of someone else with a high number (though not as high as yours!)
Good luck on Fri., and hope we both are happily pregnant in a couple of weeks! By the way, my 9-yr-old daughter was a 3-day transfer.