ANTI-VAX PEOPLE

Can you tell me why you don't vaccinate and what vaccines you stay away from (and why) I'm on the fence on vaccinating my little one (I'm still pregnant) so I want answers other than, "if you don't vaccinate, you're stupid" this way I can do my own research based on what I hear from y'all. 
Now this isn't a place to hate on those who haven't vaccinated their children, im asking for their opinions! So if you are PRO-vax, please keep your opinions to yourself!