I admit that I occasionally have a "freak-out" moment. When I compare the infant and toddler (now early childhood) health of my own vaccinated children vs. my non-vaccinated children as well as that of their vaccinated vs. not vaccinated peers, I am very re-assured that we're making the right decision. My non-vaccinated children occasionally have a runny nose and fever. My vaccinated children and their vaccinated peers have histories of several ear infections, lots of viruses and colds, stomache flus, etc. Luckily all my kids are neurotypical, but when I compare friends' children..those who vaccinate vs. those who don't...I see a huge difference in mental/neurological issues and learning disorders, ADD, non-verbal learning disorders, etc. So, the occasional "what if they get whooping cough?" is balanced out by seeing the damage in my own and in other people's children that I believe was caused by vaccines. It took years for my older children to get their immune systems back after their vaccines.
Two vaccinated and 2 not...huge differences in the health of them. With the oldest ones, I could count the days after exposure to any public children's play equipment, trip the dr., Mcdonald's playland or grocery shopping trip and predict an illness. Every Single Time! I was housebound for months one year with my kids being sick..taking turns with stomache bugs, ear infections and colds.. Now, the youngest two can be taken anywhere. I never worry about them catching anything...they just don't. I was a huge germaphobe with my first two due to our frequent illnesses...not now. We go anywhere we want whenever we want and I don't have to count down the days to when they'll get sick. When they do get sick, it's like a fever for a day and then gone. Even the swine flu last year had me down hard for two weeks. My kids had a fever and were tired for 2 days and then fine.
I know you wanted regrets...sorry there are none here.