Name one thing that you feared most when having your first child?

I feared of my baby getting congenital diseases and brain issues. Also, I feared on physical abnormalities. That's why I was helping my wife in monitoring all of checkup schedules, vaccines, medicine and vitamins to be taken and foods to avoid. I even asked her not to watch Little Couple on TLC because I also feared that our baby will become like them. But after she gave birth and knew that everything is normal on our baby, we continued watching that reality tv show because it's one of our favorites.