I am torn between to vax or not to vax!

DS has had all immunisations except for 12 months.... the only reason he had the others was because i was stupid and didn't do any research before getting them done.

imo DS seemed to react worse each time he got vaxed and i am absolutely terrified about the 12mo vax. I have done alot of research and there are obviously pros and cons to vax or not to vax.

My mummy instinct tells me NO, DO NOT VAX for this 12mo one, i just have a really, really BAD feeling about it... am i being silly or should i just follow my gut instinct and not do it? i mean whats the chances of ds getting the mumps, or rubella?? he isn't in daycare and i am a germaphobe so i use alot of hand sanitisers etc while we are out and about etc etc.... (i know this probably doesn't prevent disease, but hey its nice to feel like your trying to keep things clean.. lol)

i just am really torn