Like "Pumping is marvelous!...but you will have to remember to bolus for your meals (instruct your pump to give you an insulin dose to handle the food you are eating) For that, you'll need to continue to be aware of the carbs you are eating. I'm using a Medtronic pump so can't discuss the Tandem but I think you'll just love the pumping experience. Plus it should give you better control. Wishing you and your baby well!"