My son is almost 7 months. He has been exclusively breastfed. We have been starting to add cereal and purée foods to his diet. Right now he only eats around dinner time. I have given cereal in a sippy cup with breastmilk and he loves it that way. But I’m having trouble finding the time to pump. Do you think it’s Okay to use formula instead with the cereal? He only drinks about an once of the milk/cereal. Are there any other suggestions?