THose that use breastmilk only and give ocassional bottles with pumped bm... How many ounces do you usually give your baby in the bottle? I looked at the site on kellymom which calculates how much to give them depending on how many times she eats a day but every day is different. I am trying to get my 9 week used to eating bottles during the day since she will be going to daycare in a few weeks. She is up to now taking 3-4 bottles a day but some days she does not want them at all. ALso sometimes she'll drink 2 1/2 ounces and sometimes only 1 ounce. I hate to make a bottle with the full 2 1/2 ounces and waste it if she'll only eat half of it. What do most of you do with this type of situation since you never know how much they are going to take? Also at 9 weeks old how many ounces should she be taking? MIL said she should drink at least four since most formula fed babies eat that much but when she eats a full 2 1/2 ounces she is good for two hours before she gets hungry again (during the day).