Good morning, Together with my husband we went for a second ivf. On first Ivf 11 eggs have been retrieved, 6 fertilised, but unsuccessful. Second Ivf was done 3months later, 14 eggs retrieved, no fertilisation at all. We have been told that everything was fine, no abnormalities or obvious differences....we are shocked and can’t believe that non of the eggs fertilise especially that previously we obtained 60% of positive fertilisation.What could cause that problem, how can we prevent it?