I second yules' question re whether you've tried ebm in a bottle, to get her used to it, and test out different flow teats?

another thing to try might be to mix some of your EBM in with the formula?

would you like some ideas for ways to increase your milk supply? or will it be too difficult to express when you're back at work?

please don't take that as second guessing your plans - just trying to make as many suggestions as possible for you to consider

good luck, from another working mummy