orced my husband to suck and spit (do not think he would have swallowed somehow) -pumping has never worked for me personally.Anyway here is a link to the ready sterilised/ready made stuff they use in hospitals - not promoting this as an exclusive solution but to cover you for weight gain whilst simultaneously bfwww.ocado.com/webshop/product/HiPP-Organic-First-Infant-Milk-Starter-Pack/73862011it is