From the research Ive done.. up to 300 mg of caffeine is safe during pregnancy! Soda pop doesnt have a lot of caffeine in it, but should still be comsumed in moderation. I have about one ot two pepsi or coke a day to alleviate headaches and that is said to be okay! I do avoid coffee for personal reasons.. but I know that 1 or two coffees daily is also fine! My grandma is an RN and she informed me that Im too careful. She said she was drinking a pot of coffee a day (working her crazy hours) and all of her children were full term and of healthy birth weight!

Basic rule of thumb in pregnancy is "always use moderation". I drink chocolate milk daily- which has caffeine in it and "chocolate" period has caffeine in it! Now find me a preggo that avoids chocolate... enough said! As long as you arent drinking back to back to back Monsters, Red Bulls, and Frappacicinos.. im sure that you are fine!
