fireworks,Hello and congratulations on your choosing to have a new addition to your family. I hope all works out well for you.
It has been a long time since I went through a pregnancy but I do remember having heartburn however I did not always eat wisely. This was so long ago nobody even talked about GERD.
Here is a link to an article that you may find helpful:
http://suite101.com/article/pregnancy_heartburn-a20863
Please do discuss your concern with your OB/GYN as I am sure many women have had this problem so there must be something to offer you as far as a plan going into your pregnancy.
Kindly,
Kitt