I honestly do the same I look up things good to eat and bad. Keep a list in your kitchen and make sure you stay away from greasy acid foods. I've been eating a lot more of bananas and fruits just naturally stay to pasteurized juices and tons of water! Eggs are great too.
I'm the same way but sometimes it's hard to fight cravings! I'd say make sure to incorporate some veggies & fruits in your diet (Sweet potatoes/eggs/salmon/ popcorn/ beans/lean meat/ walnuts/Greek yogurt are all great for pregnancy ) but honestly, Drink Alot of water bc water is Vital during pregnancy bc it goes to the baby, keeps baby hydrated, & helps keep amniotic sac (where baby urinates ) clean & better for babies lungs!