I completely understand. My family is okay with our decision to not vaccinate, but my in-laws are really put off by it. For the most part, we do NOT announce openly our decision to not vaccinate, because that just brings on unnecessary stress. And I don't need that while I'm pregnant. Also, I feel it's a private matter.
That said, if it comes up, I won't blatantly lie when asked. We are lucky that we have a good community of people who support no-vacc - my midwife, our chiropractor's office (who have 4 kids who are NEVER sick and have never been vaccinated and don't use ANY medications whatsoever) and a few Peds. I asked our chiro how they deal with the pressure of vaccinations and she said the only thing you can do without driving yourself crazy is to make an effort to educate people. We keep a variety of info on hand to give or share with people. We try to pull from different sources to avoid the "that's just internet propaganda" comeback.
One thing we've noticed, especially among people who don't have kids or who are new parents, is that people don't realize how many vaccines kids are given these days. Back in our day (I'm 33, my husband is 38), we got maybe 5 vaccines? Now kids, here in Georgia anyway, get 49 doses of 14 different vaccinations before the age of 6. That's insane! And if you look at the vaccines, some of them just plain don't make sense!
I have found that when I start to question WHY we need certain vaccines, people start thinking about it at least. Chicken Pox? As kids, we all did it the old-fashioned way. A week of itching cures that, then you're naturally immune for life. Chicken Pox are not really deadly. Hep B? The high majority of cases come from unprotected sex or shared needle use - if my newborn is involved in either of those, I have something to worry about! The flu? Get the real statistics on the flu. The statistics are usually skewed on the number of deaths-by-flu each year because they include pneumonia deaths which are far higher than flu deaths.
I could go on and on, but you see my point. Sure, kids might have to suffer through chicken pox, flu (which a flu shot doesn't always eliminate anyway), mumps, measles, etc. But really, I don't feel comfortable taking the risk of the vaccine side effects.
I'm just a firm believer in our natural immune system.