The American Academy of Pediatrics (the professional society for pediatricians) has been emphasizing vaccines and what pediatricians can do to reassure parents about them.
I have had families in our practice request a modified shot schedule due to concerns that their children will get too many shots too soon. While I would rather do a modified schedule than not give the vaccines at all, the safest and most tested shot schedule is the official CDC one.
I was lead to a great blog post discussing how vaccines today are so much simpler and safer than the ones we had when we were growing up. Take a read. Maybe it will reassure you that it is not only ok but best to follow the recommended shot schedule.
vaccines 101 too much too soon