yeah i was gonna say the same as mynx, it wont do harm to top up but if you give a full bottle then the baby wont feed well or for ages, if you do top up then just use the readymade carton and if you can do it from a babyspoon and only give an oz or so then just to tide LO over untill you can try Bf again, i agrtee tho speak to people in the BF section im sure they can offer more advice about BF'ing,