My baby is 3 weeks old and has been combo feeding between breastmilk and Similac sensitive. That’s what they were giving him in the nicu but wic doesn’t cover that formula so I want to try gentle ease. (I want to stop pumping and just do formula now.) I’ve been doing an oz of breastmilk and an oz of similac. (Just started upping to 3 ounces so I’ve been putting more formula then breast milk. How do I go about getting off the breastmilk and switching to a different formula completely?