I understand completely your dilemna. If I could turn back the clock, review the data and have the right to make a parental choice in the matter of whether or not to vaccinate, I would definitely opt on the side of caution and not vaccinate my children until they were at least school age.
I've heard from many sources that people in the medical profession are doing just that; vaccinating right before their child needs to enter a school which requires vaccinations and avoiding them during the developmental years, just as a precaution.
Hindsight always gives one clearer vision. As a young parent you tend to buy into all the medical mumbo jumbo that is thrown your way about things being perfectly safe and necessary. One can recover from whooping cough but once neurological damage is done there is no recovery.