S.D.
www.blueribbonbaby.org is supposed to be a great website but I can't get it to come up for me. Maybe you can? Otherwise, I know the Bradly diet is really good and REALLY high in protein which is what you need a lot of. I've always heard you need 500 calories more than usual and usually you should be aiming for around 1600 unless you're athletic or extra tall. I you usually eat less, then just ad 500 to whatever you usually eat. I think Dr. Brewer is supposed to have come up with the diet on blueribbonbaby, so maybe you can find it elsewhere using his name?
When it comes to pregnancy, it has so much more to do with the healthy things you eat than the calories you're eating. You NEED certain vitamins and proteins to grow and develop the baby, counting calories isn't a big of a deal if you are eating what you need to.
Here's the Bradley Diet:
http://www.bradleybirth.com/PD.aspx
Good Luck:)
***
OH! I just remembered. fitpregnancy.com is GREAT. You sign up and then you can enter what you eat all day and it counts calories and protein for you! Awesome:)