Drink all the soda i want?

My o.b told me I can drink all the soda I want.. And it doesn't sound right to me, I thought you were supposed to limit yourself on caffeine?... Idk maybe I'm being paranoid? What did you're o.b tell you guys?... And don't be bashing on me, I've had alot of rude comments lately whenever I have a question or concern... There is no need to be disrespectful...