Fresh fruit is usually ok in moderation - i.e. one serving, but you don't want to demolish a pound of peaches or anything. Apples, strawberries, blueberries are all 'better fruit choices' than peaches, bananas, and oranges. They usually cause less of a spike in blood sugar. You also want to add a protein and a fat to the sweet stuff and bread that you eat. Protein helps prevent the spikes and dips in blood sugar that can cause problems.
You probably want to stay away from juice - the concentrated sugar from the fruit, without the fiber of the same fruit, make juice kind of like God's candy. Straight milk can also cause some people's blood sugar to spike, but 1/2 cup on a bowl of cereal (with a side of eggs or turkey bacon, for the protein) would usually be ok for most people.
I love sparkpeople.com for the online nutrition planner/ record - you can go in and make sure that you're getting a nice split between protein and carbs (and fat) in every meal / snack.. but a good gd day for me looked something like this:
1 apple, sliced, with 2 TBSP no sugar added peanut butter.
1 c cooked Quaker oatmeal with stevia, cinnamon, vanilla and a little cream. 3 slices Louis Rich turkey Bacon.
Turkey breast sandwich on whole wheat toast with 1 slice swiss cheese, lettuce, and tomato. 1 serving tortilla chips with 1/4 c salsa.
1 orange with 15 almonds.
Big salad with sliced chicken and shredded cheese, 2T lite ranch. Small portion of pasta - spaghetti, lasagna, or pot roast with carrots and potatotes, or beans and rice or gumbo (I'm a cajun at heart).. whatever my family was eating.
I usually ended with a fruit + protein snack - it was also my go to at any point during the day when I was feeling blech - headache, dizzy, nausea. The little tangerines that are out right now peel by hand, and I kept a bag of nuts in my purse along with a couple of those most of the time.
I also focused on walking after dinner - which was always my biggest meal of the day. I also started walking after my apple minibreakfast. I love Leslie Sansone's walk at home tapes - I delivered in the middle of summer and the middle of winter, and she kept me stepping through the weather.
The combination of walking and intelligent eating pretty much guarantees a steady supply of vitamins, nutrients, carbs, protein, and insulin - for you and your baby. It's not hard to stick to - just pair carb (sweet or bread) with something else (nut, meat, soy) and keep your portions reasonable - and walk. :) Vegetables (except corn, carrots, beans, and potatoes - those count as carbohydrates) are virtually free foods - they don't count for carbs or protein, though - so you need to eat 'real food' with them.
If none of that sounds like it makes sense - google "Low GI diet" GI is glycemic index - and it's a measure of the effect a food, or combination of foods, has on blood sugar.
Ex. of Low GI = Baked potato - bad choice, Baked potato with a little butter and lite sour cream - or plain yogurt with butter buds, cheese, and turkey bacon crumbles = lunch, esp when paired with a small salad.