This patient support community is for discussions relating to dieting,
alcohol and dieting, balanced menus,
diabetes, success stories,
exercise,
metabolism,
healthy dieting, healthy snacks, holiday tips, and nutrition. Also covered are discussions relating to specific diet plans like the South Beach Diet, Atkins Diet, Slim-Fast, Weight Watchers, Counting Calories, Fat Flush, Body for Life and others.
I have not had kids so i dont have an answer but im sure one of the girls here will answer you soon also but i was just going to suggest taking a look at spark people if you are not a member they have teams related to this and theres tons of mothers on there you can speak with !! They also have a related site called baby fit which can also give you some tips!!
All you need to do is eat sensibly, make sure you get all the nutrients that you and your baby need and get some light exercise. Walking is great exercise and not too strenuous. goku's suggestion of spark people is great - I think they have an area for pregnant women. Also I think MH does too.