Hi Crystal --
I so understand your concerns - not that I'm preganant, those days are long gone... LOL
A couple of years ago, my DD's pediatrician, really pushed me to give her the Gardisil shot. I was hesitant and felt I should wait another year or so, and he was OK with that. Now he no longer pushes the shot due to the reactions that some girls are having and I'm happy I waited.
My concerns are the same with the H1N1 shot. The last time we had a swine flu vaccine in 1976 many people had bad reactions - 60 Minutes did a story on it.
My doctor feels that even though the H1N1 vaccine is being tested, the groups are small, and we won't really know if there's a concern with reactions until thousands get vaccinated. I've never had the flu, nor has anyone in my home, so because I have concerns and my doctor isn't all for it, we'll take our chance on the flu and skip the shot.
As for my advice to you -- follow your instincts. :)