We lost 1 fertile egg

The fertility clinic rang again this morning with another up date on how our 4 fertile eggs are doing. Unfortunatly between yesterday and this morning we had lost one, it was growing to small and slow and it was 4 cells behind the other 3 fertile eggs. A little upset, they are putting back 2 eggs which will leave only 1 and myself and my partner now arent sure if it was worth freezing just the remaining 1. Any thoughts would be most welcome. Keep you all post ovee the next few days, the clinic are brining me back in saturday to place back the 2 eggs.