I feel obliged to write these lines to send a message of hope. I still remember myself reading day after day the blog of Dr López- Teijón and the testimonies from other people who had succeeded in having a baby. I needed it, it gave me hope and it moved me to think that, some day, I could succeed too. All those who have had to fight this battle know that it is too long and hard. In our case, BEING POSITIVE, PATIENT AND BEING CONVINCED THAT WE WOULD SUCCEED proved to be essential. This book has helped us a lot to get there.